My Supercharged Miata Is Already Broken? No Boost

[@EngineeringExplained]

*Important Note:* A lot of folks saying "obviously the car needs to be tuned if you add a supercharger." If you watched the supercharger install video, you'd see the *very first thing I did* was flash the ECU with the supplied calibration file to support the supercharger/boost/etc (the tune). If parts of this video do not seem clear, I'd recommend watching the installation video - kzbin.info/www/bejne/r4C0pZWtrquJask

[@typhoon4645]

So this could mean Edelbrock's tune has an issue? Did you contact them about that? Or as an experiment you could put the Edelbrock tune back and see if the issue repeats. Its your car and your call Jason.

[@EchoOfGecko]

@@typhoon4645 I'm curious about that as well. Seems like maybe the original flash failed, or maybe the wrong file was uploaded to the ECU? Seems like too many disparate issues for the tune file from Edelbrock to have out of the box... surely it must have been the factory tune.

[@billbergen9169]

That's what I thought about.

[@grumpy_0ld_man]

What a story. Brilliant that you sorted it. You changed that 0w20 oil yet? All the best mate ;)

[@slobdog21]

If you flash the car first and then disconnect the battery to perform the work wouldn't you lose the tune and it would return to stock? I thought it quite strange to flash the car FIRST but maybe flashes remain after disconnect.

[@hurion1]

"It's extremely unwise to rush to judgement when you don't know absolutely everything about a scenario... Just focus on what's the problem and how to fix it." Words of wisdom.

[@AireJayy]

Like a true engineer

[@alfredace]

This approach can be applied to many situations in life...

[@HAMlLTON]

I think that was a jab at the president

[@bunbunson27]

@@HAMlLTON everything is a jab at the president, because hes an imbecile

[@CynHicks]

Pot, meet kettle.

[@ardonjr]

This was super informative. I don't have a Miata nor a supercharger but I love learning this stuff.

[@EngineeringExplained]

Happy to hear it, thanks for watching Don!

[@naimakka1949]

stop lying to urself, everyone loves the miata, if u don't like the miata, Krampus will come for ur ass.

[@mrjiggles2540]

@@naimakka1949 😂

[@slowdriver6868]

Mate, I'm a 15 year old kid with no car and I still watch these so I know what to do when they become a cheap classic.

[@ardonjr]

@@naimakka1949 I never said I didn't like the Miata.. I said I don't have one..

[@seymourbaldauf8212]

Yes please keep this format. As a mechanical engineer this content is gold! For all those car “gurus” getting upset about the engineering being explained please ignore them, they mostly only understand putting gas in the car and flooring it.

[@dagurorarinsson2827]

No one in the comments is upset? What are you talking about?

[@mabsalom1]

Some real gems in your comments: "you learn things when you don't understand them and try to figure them out." "Maybe I'm broken but..." Most of us are broken somewhere. Keep on dude, we love you.

[@sooththetruth]

Fantastic video, I like Jason's humility, and consider that a life lesson to be emulated. I am awed by people that take on projects like these, but I realize that he has created a job for himself that allows him to learn, so we can learn. And he doesn't curse or get angry when he faces a problem, he just goes through the list of possibilities. Really, he made no error, the tuning done before the supercharger was installed didn't work to change the mapping of the throttle body response, it needed the tune repeated, or a different tune ( I don't remember which). But in the end, he downplays the satisfaction of having taken on such a project, and now having his vehicle working right. BRAVO. Lets face it, most people reviewing cars look at them, describe them, drive them and tell us how they feel, they feed us the pablum about the technology put into them described by the press releases. Jason does it, but then he takes the time to show us what that technology is, how it work. On a white board. NO BETTER CHANNEL ON YOU TUBE for learning about cars, and that includes how they work, and the compromises of every design.

[@hawkertyphoon4537]

Most of us are broken somewhere. Keep on dude, we love you. + 1!

[@gregcollins3404]

It bugs me when "how to" type channels never show anything going wrong. When stuff goes wrong is the best part, when you learn the most, and really show what you are made of...

[@bretonkyle]

Now this is a real explanation of engineering! All the whiteboard math is nice, but boy if I don't do more "huh, this was supposed to work.... why doesn't this work" as an engineer lol

[@bit0fun]

It's the intuition/problem solving of engineering that takes the math and puts it to use. I find it to be the most fun part of engineering

[@christian3448]

The art of good enough

[@horusgarcia1]

You can notice that Jason is not having fun like he did while installing it. There are no jokes or skits. It's all serious. I like it though but I was enjoying the little goofy jokes. Either way, it's good to know that I don't need more power if it adds morer headaches. I am enjoying the default engineering of my vehicle and adapting to the natural environments.

[@somedude2492]

If you make something and it works first try, it just doesn't feel right. I don't trust it. Specially if it has software involved.

[@Xheanortxiii]

Facts 😂😂

[@Htm]

"with me sadly shifting in my garage" i felt that.

[@braddirt]

"and I genuinely find as much joy... diving through these data logs and trying to figure out what's going on with this car as I do actually driving it. Maybe that's because I'm broken." The words of a true engineer.

[@HumbleMechanic]

Man SO HAPPY the issues are worked out. Great logical path dude. I LOVE IT!

[@m.morininvestor9920]

What other cars are light other than a mx5/ miata?

[@calebkopitsky7611]

M. Morin Investor the Fiata 🤷‍♂️

[@Arcanius13]

@@m.morininvestor9920 Toyota 86/Subaru BRZ are a few hundred pounds heavier than the Miata, but they're still pretty light at just under 2800lbs

[@Natuh21]

@@m.morininvestor9920 My Nissan Micra SR has 2164.94 lbs and 109.48Hp, its not a slow car compared to most cars here in Brazil and its VERY fun to drive as its very small

[@patrickmurphy8008]

@@m.morininvestor9920 street legal, and enjoyable? A Radical brand open wheel car or an Ariel Atom open wheeler. Open wheel cars in general.

[@Julian-ly8fq]

The engine feels great, much slower than before. Amazing!

[@CosineHyperbolic]

In response to your ending talk on content like this: Hell yes, please keep making genuine content, I love it.

[@dallynsr]

yea Jason, those that don't have the time for your details can skip to another video, but some of us(albeit maybe only a few) really dig this level of tuning and geekery. lol

[@Liveordiebyinches]

I enjoyed the video as well. That said... Dyno!

[@JaleM]

I believe we all run to these problems at some point or another and it’s critical to keep an open mind to find a solution. This helps me mentally to appreciate that no problem is unsolvable👍

[@BobPegram]

I personally find it very interesting to see what the problem is and then the fix. Where did you get your initial SC tune from, Eldelbrock or the guy who supplied the working tune? Secondly, why were you blind to the idea of the throttle being controlled wrongly until the tune supplier mentioned it? You already knew that the Miata throttle is "by wire" rather than a direct connection from your foot on the gas pedal. My 7 yo Subaru has an annoying tip in because it goes full throttle from a dead stop. Darn hard to modulate! There is a fix but I haven't looked recently to see if someone made it EZ to do.

[@louiegolden]

The best part of this video was the very end when you defended what this channel is all about. I’ve been watching for a few years and haven’t ever said anything but I thought this comment was appropriate.

[@EngineeringExplained]

Louie, really appreciate you watching and thanks for leaving your thoughts!

[@dougmhenriksen]

I by far appreciate the diagnosis steps. I've known a few engineers that assume it's the fault of the people building vs. Actually doing root cause analysis. I like your reluctance to point the finger.

[@kissmyaskew9844]

@@EngineeringExplained For some folks out there maybe you should start another channel. Engineering Explained: EXPLAINED. 😉 Good work here. Kept expecting to see you start disassembling your new install only to find a clump of Humble Mechanics beard between mating surfaces causing a leak or entangled in BPV linkage,,,,🤣

[@xtremegamer4696]

"Maybe that's because I'm broken" Me too Jason, me too.

[@aussiebloke609]

Nah, it's just a tuning issue. :-D

[@asesafata3741]

When Engineering Explained turns into Engineering Experienced

[@garyvanremortel5218]

Consternation turns to lucidation.

[@ghostwrench2292]

As a dealer technician, that comment really hits home. Sometimes we techs ask ourselves "what in world was this engineer thinking when..." or I have seen repair procedures that make it evident the person who wrote them has not performed the repair following those instructions.

[@garyvanremortel5218]

@@ghostwrench2292 Part of the reason for this is that car companies stick the new graduate engineers on the un-fun stuff and the English Majors on the technical writing.

[@mr.a6508]

"It wouldn't be a proper project car if there weren't some headache along the way" Advice of today

[@MrTheHillfolk]

Yup , stash cash away for the unexpected. Like a new ac compressor on my project. I got it running , even the AC was good. A week later there's a bunch of oil drippings coming from behind the clutch. It sat for 8 years,that doesn't help. a And the project was going too smoothly anyways 🤣

[@davidpegueros3]

Love the humility. I've always found the wisest people understand their limitations and work on fixing them. The foolhardy hide behind their hubris in blissful ignorance.

[@calebshonk5838]

Most project-car videos only show the beginning, install and the perfect end result. They rarely delve much into the difficulties that come up during the installation and even less into the actual problem-solving process when something doesn't go to plan. In my experience, things rarely go to plan and most installs are not absolutely perfect (though functionally correct). Personally, I would rather see the process of diagnosing an actual problem than just the shiny end result. I thought this video was informative and helpful and I'm glad you took the time to really explain the problem and your line of thinking.

[@mortisCZ]

Hear hear. I have to agree. It's much more interesting for me to solve an interesting headscratcher on any average van than just see a hypercar go into garage and turn 1000hp on a dyno after a cut. Those cars are nice and those numbers are awesome but we don't learn much about them witrhout context.:-)

[@natemoothart6967]

Yep! Rarely does a car show / YT show reveal just how much effort in a project car is tedious work, which admittedly is understandable as it's not that exciting. "And now he's going to remove the rear seat... Searching for the bolts... More looking... Googling! Wrong information, now he's swearing... OOooo that had to hurt! Okay... Going back in for another look... Wait! Wait! It's a lift out! Smiles all around! What's that? Ut oh! It may be a lift out but the other interior pieces are holding it in! Putting it back down and heading to a FB group to ask if he really has to remove so many other pieces just to get the seat out..." and so on and so on, haha!

[@richhomiefire9787]

Nate Moothart if your looking for a youtube who always shows these things, and has like 4 project cars, go check out Robbie Ferreira!

[@brunocorrea6010]

Always! In my own car, as example, I'm using an programable ECU from FuelTech. I was having issue with low throttle management, and after a long time fighting with the tuning, I figured out that was the place were I'm getting the intake manifold pressure were wrong and get too much turbulence while not on WOT. Changed the hose position, retuned and voila! Drives like a charm now!

[@DragonKnightX12]

This is why I really watching Donut's build. They show all of their mistakes, all the things that went wrong, and the steps to fix them.

[@stephanM5]

This was like watching a Sherlock Holmes mystery. It held my interest for the entire video. Learned something today. Thanks for sharing.

[@garyvanremortel5218]

When you have eliminated the impossible, whatever remains, however improbable, must be the truth.

[@georgekurgansky5986]

It made me appreciate cable throttle a lot!

[@wpgspecb]

To anyone who had ever driven a dbw car or ever looked at logs the issue was apparent within the first 60 seconds.

[@j_taylor]

I watch these videos because I want to learn about tech and because it's such a joy to follow a skilled tech as he takes apart and understands a problem. It's not nearly as interesting to watch someone throw a dart and scream "GOAAAL." The best parts of my job are when I have to solve a problem where the obvious solutions won't work. It takes a lovely mix of technical understanding and creative thinking to analyze a difficult problem and build a solution. For example, sometimes the best solution bypasses the underlying problem in a way the original designer didn't expect. A good dart thrower identifies where to quickly score points. A skilled engineer adapts to the situation, uses what she finds, creates a solution, and can build it.

[@neilhuang9605]

It's refreshing to see real engineering and problem solving at work. Thanks for showing us the process. I'm a software engineer and totally enjoyed your problem solving and investigating process. It shows that no matter what field of engineering you're in, the discipline and drive to solve problems remain the same. Well done!

[@mikecurry6847]

Haha idk why but when he acts like he's plugging the computer in at random places it cracks me up every time

[@EngineeringExplained]

I think I finally found where it's supposed to go. Bummer that it's behind the brake calipers.

[@mikecurry6847]

@@EngineeringExplained those darn engineers 😆

[@aSinisterKiid]

@@EngineeringExplained just don't stick it in yer tailpipe

[@TurboHappyCar]

He's a mechanical engineer, not a software engineer. 😆

[@Eduardo_Espinoza]

my cars plugs not to far from there actually in the front of the engine

[@garyross7496]

if something involving engineering is explained, that’s all we need 10/10 video

[@RichardSShepherd]

Bother... just posted a very similar comment. But not worded as well as yours!

[@the-real-zpero]

Enthusiast: *buys a supercharger kit excitedly Throttle-by-wire: I'm about to end this man's whole career.

[@salemcripple]

As a mechanic, i still don't understand why those are a thing. What the eff was wrong with a cable?? A simple metal cable going from foot to engine. There is absolutely NO need to get a damn computer involved.

[@bbt0101]

@@salemcripple you can watch Jason's vid about problems with manual transmissions, the one that talks about overhang. He explained something about cables NOT* giving the driver a linear feel in torque requested versus torque given by the engine

[@alexsurh1472]

@@salemcripple planned obsolescence

[@-robster-robster-]

@@salemcrippleIm calling you out man lol ! you say you are a mechanic? really? or a tyre fitter probably more near the truth ? its called refinement / fuel efficiency and emissions control , cars dont have carburettors anymore as mechanical adjustments and jets can not get anywhere near fuel efficiency/ emmisions required to make production type approval to be allowed to be sold legally almost anywhere in the world! now take a computer controlled system that can control injection parameters / timing / air intake in phenomenaly precise harmony to meet a 3d fuel map model at any rpm and load plus the ability to correct fuel trims and air swirl to suit the engine over time ...its just why there is no cable. benefits bang for buck, mpg, power, clean exhaust, refined smooth running , lack of constant mechanical tune ups, etc sorry to sound brash its meant to be a bit of light hearted humour , its just i get this kinda aggresive defensive attitude from customers who dont like to hear they need a £250 part rather than a £15 cable peace out

[@DodgyBrothersEngineering]

@@salemcripple kind of obvious when you factor in cruise control.

[@XvFenixvX]

Did you try shutting it off and turning it on again?

[@EngineeringExplained]

So many times hahaha

[@alansmilealot]

🖥️

[@XvFenixvX]

@@EngineeringExplained That's a real head scratcher then

[@bassedd7620]

😂

[@RizwanY37]

andrews yeah Jeremy clarksons fix, use a hammer to fix the throttle of an e39

[@RocketDragons]

I, for one, greatly appreciate that your videos aren't just project cars and dyno runs and driving. This is what sets EE apart from every other car channel on KZbin, and why it's my favourite. I love learning about this stuff!

[@henryvanderwilp9240]

Not sure if I'm more impressed with the actual engineering that has went into this kit, or the fact that he is humble enough to not only admit that he didn't know what was wrong, but actually vlog'd his troubleshooting process. We all learn from others. (Unless your name is either Orville or Wilbur... those guys truly learned things by themselves). Awesome project sir. Cant wait for the dyno pulls.

[@fourthhorseman4531]

For those considering after-market forced induction: when I did my first supercharger install (on my '03 Mercury Marauder) I tried several different vendors for tuning and it was a really eye-opening experience at just how much impact the programming had to just about every aspect of the car's operation. I mean, intellectually you know it, but actually experiencing it is something else. I cannot stress this highly enough: go with somebody to do your tuning that has a proven track record of success with your model of car and that is highly reputable. This is not an area you can save money on and have success. Great video man, thank you!

[@Saml01]

Woh! I had no idea anyone was supercharging these. Is this an off the shelf kit?

[@2011chitsazzadeha]

You can save money on it by just doing it yourself.

[@TheMrMiao]

Would I be able to do this in California?

[@lupavo1738]

@@Saml01 It's basically a Ford Mustang GT of the same year, it's literally the same engine so I'd imagine its the same kit.

[@chiangth23]

I can't be the only one who also smile along with you when you finally solved the issue at 15:16. Very good video, sometimes it's all about enjoying the process.

[@ibast1]

Mechanical Issue: Spend half an hour finding it and 1.5 hours fixing it. "that was two hour fix". Electronics/software issue: Spend two days chasing it and 10 minutes fixing it. "That was a 10 minute fix. I'm so glad it wasn't a mechanical issue".

[@mal2ksc]

But if you sell things, it makes a difference. Having to do repairs that take an hour and a half per car looks much worse than pushing out a software update that takes ten minutes, because they have the same problem ten thousand times.

[@CosRacecar]

You, sir, are a saint. There are far too many youtubers who would title this video "Company X WRECKED my car!"

[@funnystertzk]

CoreyO dde be like my car is broken and can’t fix

[@HondaProJason]

Really enjoyed watching this. Kinda glad something was wrong so you could figure it out and we can all learn from it.

[@psychosis7325]

"What position is your throttle?" "Well duh, my foots all the way to th...... DOH!!!" Great, brilliant, amazing video. Vehicle diagnostics is a pain and the value of a good mechanic is so under appreciated at times, number of O2 sensors I have seen replaced for a manifold leak where someone checked their air filter and left a vac line off is crazy... They were only just introducing throttle by wire on mass in Aus when I left mechanics, can only imagine how few people would have the skills to diagnose this over the phone. Hope you brought that bloke a 6 pack ;) I had a L67 with similar charging setup and racked my brain the whole time video ran and was stumped, thought it has to be an air flow/pressure issue possibly caused by tune and even focused on the throttle and seen it was electronic but it didn't click until you said he asked what the TP was >.

[@volvo09]

Yup, and the amount of customer frustration and money that's wasted by just replacing parts (like o2 sensors and even ecu's) without first figuring out WHY that code is triggered is so common. A scenario like throwing 3 o2's on a car, a couple other expensive parts, and a computer when looking at the data shows wildly off fuel trims from some other issue. Data is key.

[@zachyoung5598]

I have to say, Jason would have to be the person to do a phone diagnosis for. He brings all the data and a fundamental understanding of the operation principles. With most other folks it's just "My car no go vroom anymore. What's wrong with it?"

[@wobblysauce]

Like most things you get to know a shortlist of fixes with different problem diagnosis... as for digital, get the flow charts.

[@Foxlawl]

My favorite part of this is that today, I watched his throttle body video (Engine Hang), then the SC installation video, and then this one, in that order.

[@padraigomadain6681]

Brilliant insight man, I respect the fact that you actually went in depth without the blame game and didn't give up on asking questions and actually learning and sharing that experience. Brilliant vid and look forward to enjoying more of your content and learning from your hiccups along the way.

[@EngineeringExplained]

Happy to hear it, thanks for watching! :)

[@tiderfish]

I for one appreciate you not glossing over or omitting the troubleshooting done for this problem.

[@dil6969]

I feel your pain, Jason. I did a clutch on my '91 in November of last year. I put it back together and a month later my throw out bearing is squeaking, the expensive FM clutch started chattering and it still had an oil drip. Just because you used good parts and invested a lot of time and care doesn't mean the car will be better when you're done. The automotive world is a cruel mistress. That said. You did great though going down the list and doing some proper diagnosis and not just busting out the parts cannon. Modifying cars to this level requires a lot of patience and care.

[@EngineeringExplained]

Cruel indeed! And agreed on diagnosis, very important step rather than just replacing things that may or may not be broken. Ugh, hope things go well with your 91! Great car.

[@Smokkedandslammed]

I just put my trans back in, I dont trust it 😩

[@binderbinder6920]

Did you replace the throw out bearing at the same time, why the aftermarket clutch? And the oil leak ? Rear main seal ?

[@mathieulevasseur4082]

It's frustrating how wrenching on cars can be a Russian roulette. Sometimes I just slap things in place and it just works and other times I take every single precaution yet something goes wrong.

[@NoWr2Run]

@@Smokkedandslammed Sorry but, LMFAO.

[@umad42]

I appreciate a real deep dive into "Something broke, lets find the actual cause"

[@richardcollman2064]

I much prefer being educated in how things work than just seeing them being used. I applaud your dedication - thank you!

[@98dizzard]

11:36 ah yes, that well known mechanics trick. Wave the OBD connector at the engine to threaten it into behaving.

[@daszieher]

Ha! More like dangling a pendulum, hoping esoterics will "heal" the problem :D

[@mgreene1409]

😂😂😂

[@gowron6453]

I did driveability when I was a mechanic, having a computer background I've always enjoyed the data and looking for data point to find the issue...I really enjoyed this video (I generally enjoy all of your videos) as you didn't just drive it, you showed the data, theorized what the problem might be, found out you were wrong, but you were "man" enough to seek assistance when you needed it, admitted you were wrong, and learned from the experience..that is great!

[@elementor100]

I was watching the minutes pass by and you weren't near to say how you solved it, but my breathing finally got back by the of the video, great content!

[@jasononymous99]

JASON I would like to remind everyone else this channel is called "Engineering Explained" not "Dyno tune a drift sessions". If that Dosent sum up what you are getting into when watching you have bigger problems. You are amazing and so is this channel keep on Explaining bro!

[@seban678]

Please ignore the "get to the driving/dyno" comments... There are loads of videos on this platform you can go watch of cars making noise and burning tires. This is an engineering education channel, as the name makes pretty clear, and that's what I come here for. As an ex-engineer turned mechanic, this is gold content for me, and I'm obviously not alone. Maybe the comments don't reflect that very well, because comments are usually more of a way to complain about stuff than point out the good. So if I may speak for myself and people like me: We like figuring things out, seeing machines/technology working (or not), looking at spreadsheets to understand what happens where we can't see, and fixing issues or optimizing things. The graph that comes out of the dyno is a lot more exciting to me than watching the test happen. I wish there was more supercharging Miatas involved in my day job, so for me this is basically mechanic escapist entertainment that is also educational. It's freakin' great.

[@andycocchia4202]

totally agree man.

[@victorn6065]

This!

[@stevebrown4734]

Spot on and came here to say same. This episode had me glued to find out the solution to the missing power mystery.

[@lnrbry]

Entirely agree. I too was an old school "just adjust the carb and twist the distributer" guy right up until i started learning about long term fuel trims and volumetric efficiency. Now i am knee deep in mega squirt.

[@seban678]

@@lnrbry Thanks! "Knee deep in mega squirt" is also one of my favorite movies.

[@swjwjswj]

Name of the Channel says it all. I am currently living in Bangkok thailand, working on a rwd suv with a 6AT 2trfe 2.7(tacoma equivalent) Toyota engine with a similar set up, facing the same problems. Great lesson learnt. Thank you so much Jason!

[@johnm1925]

"All your data are belong to us" 🤣🤣🤣🤣 He's a total nerd and i love it. One of us, one of us!

[@dan725]

Oh man... can you believe that the song/video/meme is now 20 years old?!

[@aXc000]

What you say!!

[@ventzp2133]

You have no chance to survive make your time!!

[@drsonicify]

Maybe he get signal

[@z1sania]

agree... spit my coffeee ahahaha

[@superchargedpetrolhead]

The first thing that came to mind when you said there is boost at sometime and no boost at other time was " this problem has something to do with throttle body ". well i guess my automobile engineering degree is not that useless...

[@djsomeguy]

I was in the camp of boost leak when I started watching...usually such low AFR's mean loss of metered air somewhere and coming it at higher RPM was suspecting a faster ramp up of boost was "opening" the leak, although that's more common to the characteristics of a turbocharger than a supercharger. Now what I'm curious about is what was actually wrong with the tune that kept the throttle open when accelerating from lower RPM. I can't think of anything in the typical tables that would cause the throttle to behave that way. (Did my own tuning on my former Mazdaspeed 3 with Cobb Accessport)

[@CaptainCandycorn]

When I started watching the immediate thing I thought was the tune isn't right.

[@wobblysauce]

@@djsomeguy Almost, same symptoms...

[@TheGhostTrollekdejvu]

The fact that a simple calibration fixed the issue probably means they thrown off the calibration of the TB during the whole disassembly and instillation process, maybe gave it a cleaned.

[@metromoppet]

Jason. It's far better to reveal the process and articulate the issues( even if you're the cause) , than to just jump to a rectified fault . Bravo man Bravo!

[@cbsboyer]

"From failing you learn, from success not so much" - Billie Robinson, Meet The Robinsons

[@Phil60084]

Me: spends 2 weeks straight in the garage and a bunch of money to make my car faster My wife after 2 weeks: Yay! You're done is your car faster? Me again : Nope way slower.. My wife: tight....

[@nicoleyensen7062]

many divorce

[@sean8081a]

A great comment i heard in the stands at the dragstrip 'that's slower than stock' lol.

[@bassmunk]

Making your car slower is TIGHT! LOL

[@porthose2002]

I can't understand why someone would get "mad" because of this type of video. Even if you don't like this type of video, then just don't watch it! Jason, personally I love problem-solving videos like this. Problem-solving and the failures that occur along the way are terrific teachers and sharing that experience with us allows us to benefit somewhat as well. Thanks for sharing it!

[@Dunwelll]

Yeah, I'm happy you walked us through your process. Disregard the comments saying "get to the good stuff!" All your content are belong to us

[@shoarectube]

I really like the whole story approach! Keep it up!

[@EngineeringExplained]

Happy to hear it! Thought it was a pretty interesting story, always something to learn!

[@qpSubZeroqp]

I agree. Great way to approach this explanation

[@luxon4]

as someone who doesnt mess with cars and is just here for the engineering, i really appreciate your walking through your thought process while debugging this.

[@Thesaviorsway]

Sadly shifting in my garage. Way to go quarantine. :(

[@kjyu]

@Gabriel Godina hoax virus huh? tell that to 11+ millions who got infected

[@Thesaviorsway]

I'm not trying to have a debate start I'm just trying to comment and sympathize with those who choose to stay home that I understand their frustration or sadness and those who are free to choose to drive outside also or refuse to.

[@nairbyad7188]

@@kjyu do your own research and stop beLIEving the presstitutes

[@stevenyia2778]

@@killdizzle the government knows best I guess 😏😂😂

[@DrKampfpudding]

Where TF to you live to still have quarantine

[@ruidiasbraga]

I have learned so much with this video. good storytelling, details, technical info, good problem-solving thinking. nice job!

[@EngineeringExplained]

Thanks Rui, happy to hear it - appreciate you watching!

[@BirdiesGoCherp]

That last segment of the video about how you enjoy figuring things out and how you dedicated this as an educational channel really got me. You've been explaining stuff to us for years, you've been dedicated to doing this for years. While I don't hate new subscribers, I hate people who subscribe then boldly and rudely ask you to change your content to fit their liking. I love your content even though I'm not very mechanically inclined (I'm a med student) but I thoroughly enjoy physics and basically understanding how things function and the mechanisms behind it. Thanks for the content Jason! All the support!

[@canadatransistor]

The content of this video kept me on the edge of my seat. I had a feeling something was up with the explanation of bypass valve. Great stuff - stick to your presentation format! "Give me the answer people in 10 seconds or less" isn't your target audience.

[@daan5918]

As a former car mechanic and enthousiast this level of problem solving warms my heart

[@connermt74]

How much better would the USA be today if we understood nothing is perfect and no matter how much you think you know there’s always more to learn and room to grow and change. Jason, that message supersedes the automotive industry. Well done on multiple levels!

[@tavarish]

Your waternator's busted

[@suryaprakash0499]

Due to his questionable choice made after watching wrench everday

[@fiqirr]

Duh.. thats why he wasnt seeing any blinker fluid pressure

[@Grr8xtc]

I love this kind of content. Thanks 👍

[@austinsears1637]

@@fiqirr Oh, no, no, no no no! Just no! If he properly calibrates his muffler bearings in accordance with governing limits, it's going to run fine as fine whine, whine with cheese even maybe!!!

[@topvideos6166]

I think you are waiting him to say my car for sale 🤣

[@ddpwe5269]

"Maybe because I'm broken" lol awww Jason, I love all the videos you release. Extremely educational, even to a layperson such as myself when it comes to vehicles. Keep up the great work and don't worry about all the greedy people, this is your channel and you'll always have viewers with you as long as you enjoy what you do as well! =)

[@blackfly29er]

+1. The longest lasting lessons are learned by mistakes.

[@terencedavis6811]

For sure! There are many of us broken people who like both sides of the engineering - just keep doing what you're doing. I love it.

[@melsilva9158]

No need to apologize, the title of the channel is "Engineering Explained". I got exactly what I expected from watching this. Thank you!

[@DanielGarcia-nh1ok]

Well, on my first year on engineering school one teacher said: "an engineer is a guy that solves problems, not replaces them". So this vid is a perfect example of that.

[@82raptor]

On my first day at tech school I learned how to fix all of the crap designs you engineers make!

[@DanielGarcia-nh1ok]

@@82raptor our designs are fine, you just broke them :P Ps: dont get mad, im just doing a (bad) joke xd

[@ZealothPL]

"what's wrong with my miata?" There is a supercharger stuck to it m8 *This message has been brought to you by Turbo Gang* Really liked the explanation of a thought process

[@TheDemonican]

My Turbocharged ND Miata makes 210whp... its waaay faster than the Supercharger kit.

[@BigUriel]

@@TheDemonican But when you buy a car that's all about the handling and then put an aftermarket turbo on it you kind of missed the point. Plus turbocharging a NA motor requires a lot more modifications, usually including a whole new aftermarket engine management system to go along with it, meaning driving the car permanently with the dash all lit up and half the infotainment systems not working any more. In short, it's for the type of people who rip the door panels off their car and are happy to drive around on the public road in a literal steel cage with an engine and wheels.

[@AliasProductions801]

TheDemonican it’s a 12 hp difference. Calm down

[@aaroncurtin9762]

Don’t ever change. You’re not broken. You are why I come to watch your vids.

[@balinx]

“ i was wrong by the way ” - said with such passion. could be a great motto / tag line edit: this a great video. Thank you

[@f-s-r]

I can only imagine your expression when asked "what's your throttle position?", lol! :D

[@IIIMoodyIII]

Did you try turning it off and on again?

[@JOutterbridge]

"Maybe i'm broken" What a great end to the video😂

[@afesquivel]

@@JOutterbridge All engineerings are "broken" somehow, but we don't want to address that problem, that is why we look for other problems to fix thinking that in some indirect way we will get "fixed" ... or not.

[@MrLeadpb]

it's a diagnostic skill where most dealer mechanics still lacks this. Great video and science

[@_M27_]

Is it just me or does this feel like a smarter everyday moment

[@rragnus]

man I wish I had a project car but having space for parts and equipment to work on the car are must have I suppose

[@fearloathinginvegas]

I live in an apartment and i have a project car. I started with harbor freight tools, and sticking the parts on my balcony. Its not an easy life and i cant do everything still, so i utilize a mechanic for the stuff i dont have tools or room for.

[@jarekpszuk6944]

On Hoonigan channel there is a home wrenchers episode where one of the guys, called Suppy, made an engine swap of an ls v8 into FD rx-7 in a shed that barely fits the car itself. It's more difficult but surely possible.

[@armoule8596]

As a wise man once said, it can be easily done at home with common hand tools

[@fearloathinginvegas]

@Brett Collins yeah im lucky cuz my neighbors work on their cars too. I just avoid making loud noises late at night lol

[@joshkiej6601]

You can always see if a friend has the space to store yours... And tools are definitely a must but you dont need snap-on, just get some cheap stuff

[@spoerer567]

Had the same problem when i swapped a motor out of my truck with a friend. Throttle position is suppose to be reset whenever the throttle body is removed. Didn’t know that, and the truck would idle and run like crap. Happy you got it fixed

[@ZealofSparta]

Jason, we love your engineering spirit, your heart of a teacher, and willingness to learn. Stay golden buddy! Edit: Typo.

[@fmsracing442]

Perfectly said, this is a learning channel and teaching methodology is probably the most important part of understanding mechanical systems. Thank you

[@FlatPlaneCranky]

I own a 2017 Mustang GT with a Gen 3 Whipple and I needed to absorb this training because I have questioned the supercharger bypass valve and you have totally nailed it brother!! Thank you so very much!!

[@modifiedvai5975]

I find joy in those data logs too. 16:04 This is an amazing outlook. Your troubleshooting process is exactly how I'd approach problems. Great watch

[@nicoleyensen7062]

Thirteen days to figure that out is phenomenally embarassing imho...

[@RadioactvPanda]

Thank you for showing us your problems! It's something that is probably hard to show but I learn the most with these kinds of videos.

[@googlebox1655]

You don't learn from success, you learn from failure. It's what you learn from failure that leads to success. So yes, it's very much the right thing to do to show how that process actually works, and lessons such as "don't make assumptions, verify everything".

[@michaelblacktree]

_"It wouldn't be a proper project car, if there weren't some headaches along the way."_ My Jetta is definitely a proper project car. 🤨

[@rogerj412]

So is my TDi wagon. Right now the issue is how to stop the damn panoramic glass roof from leaking.

[@javierherrera8782]

My 95 std celica has me broken....but because I was already poor and I love it!

[@rogerhinman5427]

As is my Mustang and it was somebody else's project car just to make it even more interesting.

[@crazeguy26]

my W202 is a one gear wonder.

[@johnlee1009]

my POS 1995 miata. I'm learning a lot by diagnosing all these problems.

[@jaimereyna9570]

Idk about you but sometimes I love when I have a problem, spent so much time troubleshooting and solve the issue! it’s like yassss!! 🤘🏼🙌🏼 i am the shat!!

[@EngineeringExplained]

When I finally found what was causing the issue, I was shouting obscenities and so happy hahaha. 13 days (of course, working on other videos during this time as well) not knowing what the deal was, and bummed that it wasn't working. So rewarding once you figure it out!

[@Na7ure]

One of the best feelings in the world

[@chrimson8598]

I agree with your opinion of showing the full process of discovering a problem and going through all your attempts of understanding what's actually wrong.

It was super informative. That's how we all learn, when modifying these cars. The OEM Ecu's have gone so advance. That they have so many parameters, variables and tables to protect the engine. It is crazy but at the same time it is fascinating. Keep it up 🍻👍

[@TastyTacoN1nja]

All at once a million boomers cried out, "glad I've got a throttle cable!"

[@TheDrAkira]

hahhahhaha xD

[@bakervanbv299]

Boomers? I'm 17 and I'm glad my 924 has a cable lol

[@epicshooter1]

And they would be wrong. The TPS (Throttle position sensor) has been around since the invent of fuel injection. Plenty of mechanical throttle bodies with manual throttle cables use them. Back as far as the 80s.

[@calebkopitsky7611]

Agreed... although I’m just 16 and recently started driving a manual, which has made me wish it just had a simple throttle cable... or that I didn’t watch EE’s video on electric throttle bodies with manuals which has MADE ME NOTICE IT CONSTANTLY

[@icin4d]

Being a boomer doesn't make a difference when tuning. These types of sensory electronics have been around for decades.

[@jestruck]

Showing vulnerability to the learning process is awesome man. That’s a man who is smart and the one I’d trust .

[@Lianpe98]

Now I know the right place to plug in the computer

[@EngineeringExplained]

Just throw it around, it'll work out!

[@dyershov]

I had this long lasting idea to introduce a "Check Software" warning light into car dash display. It will be a the most dreaded light! Even more then "Check Engine" light.

[@renaldobryan1047]

I dont think there is anyone who wants you to rush through your explanations. Keep up the great work

[@gasgibson]

Hey I enjoyed this episode it kept me interested throughout, like a soft thriller. Great job👍

[@dan428]

Enjoyed seeing this as this is always the sort of thing that happens with projects.. something always doesn’t go as expected and you gotta figure out what’s wrong. Looking forward to seeing the results now (I have a Miata ND2)

[@valentin4155]

I started doing my own diagnosis and came up with all the scenerios of why it was not function properly and also thought of the throttle position before you revealed it as the culprit. I luv engineering and love science and so happy it helps me problem solve better.

[@turbodreamst88]

4:57 dropping serious universal wisdom

[@randr10]

It's funny because I was having a very similar issue with my new-to-me last year '06 Mazda 6 with the 3.0 V6 and 5 speed manual. I would push the accelerator and the throttle valve wouldn't move according to the FORScan readout. I even took the snorkel off and filmed the throttle plate, and sure enough, it wasn't opening when I put the throttle to 100%. It would eventually move, but it would take about 4 seconds to fully open. Resetting the computer would fix it, but then it would come right back. After a while, I started doing basic troubleshooting stuff because the forums were saying the PCM needed replacement and i wasn't about to spend a grand on a car I had just bought as a beater. There were no codes and the car was acting like it was in limp mode, so I was leaning towards PCM as well, but I figured it couldn't hurt. Well, I took the MAF sensor out to clean it and it was completely coated in a sweater of dirt. I have never seen a MAF with even a visible speck of dirt on it, but this one was so bad you couldn't even see the filaments. I'm not sure how it got that way, although I'm speculating that the PO had a K&N filter on that was over-oiled, but I have no actual idea. Anyway, I cleaned it up, put it back in and the car ran like a new car. I still don't like the throttle mapping of the factory tune. It lags almost like a turbo would, which is incredibly annoying, but it makes good power now and I can actually get the thing to accelerate when I tell it to. Long story short, the Mazda PCMs seem like complete garbage. It should have spit out some kind of code to at least let me know that the car was acknowledging limp mode. Also, the AFR's must have been way off with crazy fuel trims and the like. How is the PCM designed to not detect that as a problem?

[@lsxfam]

You seem pretty well versed with engine performance. (Not necessarily performance as in enhancements but the actually performance of the motor). So the MAF sensor works within a specified range of voltage (usually 0-5 volts). There was no code because it more than likely did not exceed or fall below the range of voltage for times extensive enough to see determine a fault.

[@sophocha]

This is reminiscence of my successful attempt to supercharge my D16 engine with a JRSC 10 years ago. You learn so many things: TPS sensor position, AFRs, using Turboedit for tuning, LC-1 with wideband sensor, bypass valve, spark timings and so on....when everything is mechanically perfect, you hit the roads and become obsessed with dialling in all the settings to make a perfect fuel and timing map....good times....also, the more simple the setup the better it is....nothing like a cable going to the throttle.Saves you a lot of time troubleshooting.

[@joeystevens3308]

I would love to see more videos with the Miata. I like your educational take on building a car.

[@mp5778]

The "By Pass Valve" is just that and not a "boost recirculation valve". Air By Passes the supercharger. Air comes in thru the throttle body and during idle, cruise, light throttle, the BPV is open and air then goes thru the BPV and into the intake manifold and engine. The air is "Bypassing" the supercharger and the supercharger is basically "free wheeling" passing no air and only consuming 2-3 hp. During WOT, the BPV closes and all the air goes thru the supercharger, gets compressed and heated and then to the intake manifold and engine. The BPV allows for smooth transition in and out of boost and lets the supercharger freewheel and consume no hp during cruise and light throttle. You can test the system by wire tying the BPV open all the time, no boost, and then closed all the time.

[@stfu7203]

what does WOT mean?

[@hhh5377]

@@stfu7203 Wide-open throttle

[@contentioushackery]

If the supercharger is spinning it is moving air. If the BPV is open then the surplus of air coming through the supercharger but not being forced into the manifold is moving backwards (recirculating) through the BPV. The supercharger is freewheeling in the sense that it is not compressing air on hot side because that air is free to flow back out the BPV instead of creating pressure in the manifold.

[@BoostedNDMiata]

After much research and negative posts on problems with the supercharger and tune I chose the BBR route. Thankfully mine was a flawless install and tune. People need to remember Pedal position and throttle piston are not the same in “fly by wire systems.” All controlled separately by the ECU. Glad you figured out the problem without too much drama.

[@andrewdc1]

Jason! Unbelievably something similar happened to me a couple weeks ago! I installed a roots style supercharger on my Hyundai Tiburon and it was having trouble making boost and in fact felt slower at times. My first thought was "It must be the boost actuator". I replaced it just in case and NO FIX. I was at a loss and didnt understand what was going on because I also had no boost leaks. Well I have a throttle monitor for nitrous in my car and one day I noticed when I looked down at it it said my throttle position was not 100% when I floored it

[@Sseltraeh89]

hearing this makes me so much more thankful for my 20yo rust bucket's cable-actuated throttle. i mean... try delaying that, ECU...

[@hawk6147]

47 year old rust bucket, only like 5 cables for the entire engine lol, can't have a computer issue if there isn't a computer :P

[@Pierceprepper327]

*ECU laughs in injector duty cycle*

[@TheMischix]

It still can take away some power by changing the Ignition Timing, Fuel Injection Length etc. That's one thing the ECU can do in a cable-actuated throttle to take away power. For example if your knock sensor is detecting slight knock you ECU usually changes your ignition timing to get back to stable combustion levels.

[@aronvries6029]

Jason, Thanks for the video. This is what a engineer or mechanic is about. Something is not working -> try to understand why -> understanding the problem -> fixing it. KZbin, Insta etc. is all about but success but you never see the failures. But in reallity 9 out of 10 times thing not work out the first try. Thanks for sharing it and leting people know how it goes in the real world instead of just fixing the tune and not talking about it.

[@KBC-69420]

Dropping knowledge at 5:00 🔥🔥🔥🔥🔥

[@dan725]

This was an amazing video. I was really at the edge of my seat at your frustrating journey to get this going. We've all been there hahaha. And.. I can't believe "All your base are belong to us" meme is now 20 years old!!! what in the world.

[@anthonybelyea1964]

Hey no need to apologize man everybody watches your channel because it's not just about cars we actually learn the hows and whys .thanks for all the knowledge!😎👍

[@dstud2085]

“Sadly shifting in my garage”, I thought engineers don’t have feelings 😉

[@terbo2000]

We do and they're almost all disappointment.

[@HannahFortalezza]

Brett MacPherson am also engineer, can confirm