WE FIXED MY AUDI B8 S4'S MISFIRING ISSUE!!! Dual Pulley Throttle Body E40

SAVE MONEY ON YOUR INTEGRATED ENGINEERING PURCHASES BY USING THIS LINK:
- performancebyie.com/vancityaudi
After what felt like an eternity of having non-stop misfires and breaking up during WOT runs in my 2012 Audi S4, we FINALLY figured it out!!! Quite a few people DM'd me on Instagram, sent me a message via Facebook Messenger or commented on one of my previous KZbin video stating that they are or were experiencing the exact same issues that I had. With any luck this video can help them diagnose their issues and help them get the most out of their Audi B8 S4 once again.
If you need instructions on how to datalog your Audi B8 S4 here ya go: • Datalog your Audi B8 S...
All hardware installations are performed by Reiter Performance. For more information on their services please reach them at [e-mail] or check out www.reiterperformance.com for more details
All dyno testing is performed at Racing Greed located at 1650 Broadway St Unit 110, Port Coquitlam, BC V3C 6P8. They can be reached at [e-mail] or check out www.racinggreed.com for more details.
For any business inquiries please email me at [e-mail]
Website: vancityaudi.com/
Instagram: / vancityaudi
Facebook: / vancity.audi.1
#Audi #B8S4 #HowTo

[@VancityAudi]

SAVE MONEY ON YOUR INTEGRATED ENGINEERING PURCHASES BY USING THIS LINK: - performancebyie.com/vancityaudi Just a heads up guys that the spark plugs are actually NGK BKR9EIX and NOT BR9EIX!!! Sorry about that!

[@djpumpkyn]

I too have learned the hard way. A lot of my vehicle issues have always came to battery or ground wire issues. We're excited to see the results when you run it again.

[@stevepryce6738]

Thanks for the update, really didn't see that one coming at all. Glad you got it sorted out.

[@VancityAudi]

Thank you

[@bagelbandit6076]

Hey, at least your ready for next year!!! Great video, very well organized. This is going to help someone down the road!!! Love the whiteboard

[@VancityAudi]

Thanks for watching!

[@marvinmills4290]

Bro, awesome content, and as always a pleasure to watch your videos

[@VancityAudi]

Thanks for tuning in and checking them out!

[@jpstone9105]

Awsome find Adam!!! Never knew that battery can effect this much!! Very nice content again! Waiting for that "season's last" run! 💪👍🔥

[@VancityAudi]

Already ran the last 1/4 mile run of the season: kzbin.info/www/bejne/o4CsqJSQrLCIf7c

[@dirk5950]

Wow, very interesting. So glad you figured it out! I'm at a little over 2 years on my Braille G30 on my MK7 GTI, still runs strong, no dips and per log this weekend running 13.7V at WOT. I figured they'd have similar charging strategies since both VAG....

[@VancityAudi]

They probably do. It may have been that the battery got wrecked in my RS3. Not sure yet.

[@scottc78]

I had a similar issue with my modified 1987 Buick Grand National. Despite a larger FP and injectors, I had to "hotwire" the FP to the alternator directly to get enough power to it. When you said the actual issue I was like "holy shit no way" haha, but it makes total sense. Can't wait to see that first 10.8 run.

[@dallasd8]

Glad I get to tune in early 😎

[@MarkIzaguirre]

VAG, gotta love them.the battery did the same thing on my mk7 GTI

[@quickhandcam8596]

You and your battery issues for weight savings lol. It happened on your RS3 and now on the S4. Those things are the bane of your existence. Glad you got it solved! Looking forward to more content!

[@VancityAudi]

Most definitely! The RS3 has a super weird issue that all 2018 RS3's experience. This just happened to not work out for me in this car as well.

[@quickhandcam8596]

@@VancityAudi Can't believe clowns were saying it was the tune. They don't know how GOOD Integrated Engineering tunes are. They're some of the best on the market!

[@VancityAudi]

@@quickhandcam8596 The ignorance on this platform in particular is un-f$cking-real

[@nicolasboukas6491]

im a fan of OEM parts as a auto technician....... not everything but a always preferred OEM battery, great video, I love watching this content........

[@VancityAudi]

Rocked that Costco battery until I sold the car. Zero issues.

[@JP-do1xc]

Great video , can solve alot of my problems now. You need more subscribers

[@VancityAudi]

That is only if you are suffering from the exact same issue...

[@Koachise]

I wonder if I'm running the wrong battery now. 😯 Also I don't remember needing to code the battery when I lnstalled it. Anyways, can't wait to see you back at the track. Keep up the great work Adam.

[@VancityAudi]

You should always code your new battery to your car to restart the charging algorithm.

[@mattfavor2940]

Damn! I did not see that coming! This was like watching an intense suspenseful movie. Glad you figured this out bf I have an issue like that. Now I know what else to look out for. I mean it makes total sense but for some reason just isn’t one of those things that would jump out as a possible issue. But hey at least ya now have a bunch of brand new parts on top of that. Haha

[@VancityAudi]

We didn't see it coming either! Lol. Bunch of new parts installed equals a bunch of money that didn't need to be spent so that sucks. Just very happy it is sorted out now.

[@BoostInMotion]

good catch wow at least you changed all those parts

[@VancityAudi]

and wasted a bunch of time and money in the process.

[@Clayspeed]

Definitely good info and troubleshooting without randomly throwing parts at the problem. Could have been very costly. What battery did you use from Costco?

[@VancityAudi]

Whichever one the Costco battery website told me to use when I was standing in the store looking at them all, lol

[@Akokorudagmailcom]

Love the video as always. These are my reference half to time for when logging my own car by chance is a stg 1 non pulley tuned car LPFP also supossed to be 4500 or above ? I also have the brisk plugs I switched them out for NGK 034 said my car would be fine on those but it was not running good I noticed a huge difference when I switched back to NGK

[@VancityAudi]

From what I've been told 4500hpa is the absolute lowest you should see. From my experience though you want it closer to 5000hpa at the lowest.

[@oemtam]

Very interesting and really supports your data log anything impacted by the component you change out, a new added to my list voltage. Kind of interested in Braille saying that battery would support the car; was the amp rating too low on the battery? Their statement of support really caused you a boat load of time and cash, did you reach out to them and let them know your results?

[@VancityAudi]

The battery failed originally in my 2018 Audi RS3. There is a very specific problem in those cars where they have the inability to use lithium batteries. I think perhaps that may have hurt the battery in the first place. Even though it showed a full state of charge once I juiced it up again, maybe it wasn't able to be charged by the alternator properly. I haven't reached out to Braille again, but I will be.

[@ferdi.b93]

Damn the battery. Never would of thought about it

[@samwh4775]

I have an A4 that is stock, I got a message from the car saying that the battery is weak just before winter started and with temperatures around -20 or -30 the car does start weak but I noticed that around the city the car feels ok but on the highway when I push it from 130km/h to 180km/h it feels sooo slow, it feels like the turbo fell off the car or something 🥴, it feels just like my old Mazda 3 with a N/A 2.0 4 cyl, so I don’t know if this has something to do with that, I’m going to try replacing the battery !!

[@carlosarroyo5262]

Having the same issue in my 4.2 s5. If you have the time I can send you the scan.

[@montoyeaprice9779]

Great video man! I'm getting a p308D00 fuel tank pump code from my obd11... its intermittent...I have a13 A7 running i.e dual pulley 93/100 Oct file... how do I log and bring the graph up using i.e data link cable or is that a vcds thing? Guessing I need to replace the lpfp eh?

[@VancityAudi]

Link is in the description of how to log your car with either VCDS or a Powerlink cable from Integrated Engineering.

[@eduardlast23]

hey look at it this way you got brand new parts installed and will run great

[@VancityAudi]

I've tried to look at it in an optimistic way, but all I keep going back to is that I wasted a bunch of money on the car that I probably didn't need to, haha.

[@justinspoon5408]

Got a P0089 code tonight, have the upgraded fuel pump on my b8.5 and running E40 integrated tune…. That code brings up fuel pressure regulator and I lost rail pressure. Could that be the hpfp fuel sensor, or do you think my upgraded pump is already dead? Thanks in advance

[@VancityAudi]

Sadly I'm of no help to you there. I never experienced that code and was using an OEM pump. Not sure what your problem may be. Sorry.

[@rschmidt587]

Great video. Do you have a video that explains all the mods you have done on the car?

[@VancityAudi]

Each mod I did has its own video. If you just want a list of mods they can be found here: vancityaudi.com/faqs-2012-audi-s4

[@rschmidt587]

@@VancityAudi Thanks for the info.

[@GTOworshiper]

I had the same problem in my RS3 when running that exact braille battery. Since it's lithium it has a much lower resistance compared to an OE style battery so the car sees it as fully charged when driving around. To "fix" the issue I unplugged the connector on the ground strap that the car uses to monitor the discharge rate of the battery. Since the car can no longer see what the battery state of charge is it defaults to juicing the battery at about 14.5V when driving now Could put that braille battery back into your S4 with the connector unplugged and see if it allows you to run the lighter battery and not have the same voltage issue? Love the content!!

[@VancityAudi]

I like how you put fix in quotations. I don't see that as a fix. I see that as a work around that will kill the longevity of your battery. I as well did that and will be going over what else we did in my RS3 in a future video.

[@GTOworshiper]

@@VancityAudi yeah, it's definitely not a solution. Braille was saying by putting a resistor in line on the 5v signal could work but haven't had time to figure that out. Definitely look forward to seeing what's next for your RS3

[@rylenhudson9400]

I’m only having it on cylinder 5 I replaced coil and spark plug and still getting misfires any idea??

[@VancityAudi]

I'd look into your injector next

[@Mazzerants]

Running into similiar issues on my SQ5. Thought it was my cats failing so I went test pipes. Still getting it, only thing left to play with is battery. Turns out it is the OEM battery from 2014. Sucks I found out after replacing the SC cores, carbon cleaning, cleaning injectors, and installing test pipes.

[@VancityAudi]

I feel your pain!

[@Mazzerants]

@@VancityAudi Think I figured out what the underlying issue was. Seems to be more prevalent on IE tuned 3.0T's vs 034 but it is the LPFP not being able to supply enough fuel when near and at e40. I was able to literally drop in (after finagling the siphon tube) a RS7 bottom half of the the LPFP. Part number is 4G0919051L. Motor finally pulls over 6k without fuel cut and misfire. Sounds healthier too and drops flames a lot more now.

[@PGHPYROKNIGHT]

Thanks for the info Adam, what’s the exact model number and info for the battery? Please. I’ve done everything you did except the battery.

[@VancityAudi]

Which battery? Costco or Braille?

[@PGHPYROKNIGHT]

Costco please

[@VancityAudi]

@@PGHPYROKNIGHT I just used the book at Costco. It's nothing special. It's just a simple, regular battery they sell there for many different makes and models.

[@fshah4802]

This is crazy. I have a 4.2 fsi v8 in my q7. I have replaced plugs and coils and i still get misfire. But it is only in cylinders 2. Only happens when i hit the gas at full throttle and cylinder 2 does a miss fire .u think the battery will help??

[@VancityAudi]

Sadly, no. I suspect if it is happening in only one cylinder, something more serious is happening. Sorry

[@fshah4802]

@Vancity Audi i have a feeling it is carbon build up. The car runs normal no misfire only if i go above 4k rmp with wot then it throws the code. Also if it was cylinder compression problem then it should throw error all the time correct? Ps plugs and coil packs are new

[@VancityAudi]

@@fshah4802 could be. Open it up and give it a clean and see if that helps. Good luck!

[@wgfvideos3768]

😄 I got a b7 S4 it had a 7 year old battery just replaced last month and it can be significantly noticeable. These cars have a advanced engine management systems and sadly they don’t do good jobs telling you it’s a battery because the ECU thinks it’s ignition related. most cases you get random codes or none at all until you test your battery and see the volts are below 14-13 while idle. So it was the ECU power supply below threshold. How can the ecu identify this?The cars brain needed a coffee that day bud;)

[@daviddemyan927]

did you ever have the mechatronics transmission issues on this car?

[@VancityAudi]

kzbin.info/www/bejne/e33UeGlmj5Z0pNU

[@daviddemyan927]

@@VancityAudi thank you 🙏

[@JDFelda]

Anyone else hear the fuel pump start priming right when he started talking about how good the fuel pressure was after swapping batteries?

[@VancityAudi]

That was a coincidence, but yes, that was the pump priming.

[@exoinky1293]

My b8.5 has a epc and 3rd cylinder misfire it’s not even tuned I do have low voltage codes

[@skyhookpro]

Adam you do a great research in a hard way, but you need someone to have access data (like audi tech on the dealer)...Im porsche tech and I follow you about yr ago...and I see that you need this info for proper diag..e.g low fuel pump pressure...we know that you audi does required between 4 to 6 bar and is controlled pwm by dme and or fuel pump control unit...If you need documentation or any audi info let me know i can help you....i work in a multi dealer in south fl...also the electrical system are not full capable on lithium bat...the system is design and optimized to work with agm batterys even the system have the option for lithium (gateway programing)...but people around internet misinformation lead to wrong doing in VW group car...like I said if you need any documentation just let me know im willing to help you out...

[@VancityAudi]

Your data wouldn't have helped me at all sadly. You know it "required between 4 to 6 bar"... It has never dropped below 4 bar throughout this entire process. The electrical systems aren't supposed to be able to properly use lithium batteries in a bunch of VW's and Audi's yet people do so regularly without issue. I very much appreciate the offer of the data you have at your disposal though.

[@davidmusiyenko4158]

Adam! What’s next for the B8 s4?! 😍

[@davidmusiyenko4158]

@VanictyAudi please also look into the CSF performance Radiator and maybe testing with it too! Verkstarkt Performance tensioner?

[@Acerxz]

What about your RS3....

[@VancityAudi]

What about it?

[@jeremielibraty7]

😂😂😂😂😂

[@xXspark365Xx]

Man, a low battery can cause so much problem!

[@VancityAudi]

That it can! Something very, very few people think about.

[@tiggaism]

What the.....? 🤣🤣🤣🤣🤣🤣🤣 I wound never have figured that out. Great Vid!

[@VancityAudi]

Thanks! We're lucky we figured it out too!

[@Just_Modify]

I’m gonna replace my battery this next pay check, I think it’s the stock battery so it’s time. 10years old is old as f*#+.

[@VancityAudi]

That's a wise idea. 10 years out of a battery is extremely impressive but I can't help but think you'd gain better performance with a new one.

[@jdavidceron]

Looks like u scratched your head a little too much lol

[@dvcphotography4564]

wow as if just a battery

[@VancityAudi]

Pretty insane, huh?

[@parisbrown4606]

⁠​⁠@@VancityAudi Wow Im having the exact same problems on my Stage 3 e60 B9 S5, high rpm hesitation and misfire. If I lower my E content it runs better and I when its warmer out it runs better. I have all the neccesary hardware and I have changed many components plugs, injector, coil packs like you have to get it to run right with no luck. Man id shit my self to find out that its been my battery that is responsible for this !!! Im defenetly going to give this a shot because I don’t drive the car daily and it sits for days to a week at a time so maybe it is the battery, what do I have to lose atp but more money 😂

[@VancityAudi]

@@parisbrown4606 I hate to be the bearer of bad news, but B9's running Stage 3 E60 software are notorious for having issues. I would highly suggest inspecting or replacing your direct injectors. I'd also log your car to make sure everything is working as it should be. I wouldn't want you to lose a motor like I did.

[@parisbrown4606]

@@VancityAudi I’ve replaced everything ignition and fuel related. My car is seeing more boost than requested about 2.5lbs more and I believe that’s what’s causing the hesitations. Maybe bad wastegate or n75 valve.