Honda Accord Ignition Misfire - Diagnosis & Repair

This will be a helpful video for those of you who do not have all the fancy scopes and scan tools.
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Due to factors beyond the control of ScannerDanner LLC, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. ScannerDanner LLC recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of ScannerDanner LLC, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not ScannerDanner LLC.

[@djosbun]

Hello Paul (and Caleb)! My son got me a gift certificate from AES Wave for Christmas, so I'm going to be ordering your book! I'm excited to read it and to learn from it. God bless both of you and Caleb's new family! Merry Christmas to both of you.

[@ScannerDanner]

@Total Confusion That's a ridiculous comment. What happens behind this scenes, is we can't keep up with everyone. You answer one question and then they multiply. Like the scene in Bruce Almighty when he's answering emails? It is exactly like that. But I do care, whether someone is a paid member of my website or not.

[@ScannerDanner]

@Dave Osbun you won't be disappointed with AESwave! In fact I'd like to add to it, one, just to stick it to the wet blanket comment below, and two because I do this all the time. I'd like to offer you and SD/AES Grant to shop with them. All of my affiliate revenue earned from AES is being dumped into an account where we give back to our industry. Whatever I offer from this account AES matches dollar for dollar. Copy your message and then mine right here, and send it to [e-mail] and I'll set you up with one. Merry Christmas my friend and thank you for your support!

[@johnaclark1]

@Total Confusion I'm not sure why expecting to earn money with your knowledge means you don't care about people. In fact, I'd say just the opposite is true. I'm sure it's safe to say you've never visited the premium channel nor have you viewed any of the content there. It's free for 14 days...check it out for yourself and cancel it at the end of 14 days. Then see if you can come back and make the same ridiculous comment with a straight face. You cannot find better training than what is offered there for the minuscule amount he charges. A few years back I signed up for the premium with the intent on watching and canceling because I'm cheap. I'm still a premium member today. I have earned TONS more money with the knowledge I've gained than I could possibly pay Paul Danner for his premium channel in a lifetime. I'm an amateur doing repairs and diagnostics as a side job to my regular job and have fixed cars that local shops couldn't fix, all thanks to the premium channel. Also, if you paid any attention you see that much of the proceeds he earns from certain things go straight to people in need. So, you're just wrong about Paul Danner. He expects to get paid for his knowledge but he cares and is also a very generous Christian. He's a winner in my book.

[@davakil]

@Total Confusion you haven’t a got a clue, what he teachers in the book and premium is second to none, look what other top you tube mechanics say about him , Ivan from pine hollow auto diagnostic and Mario from super mario diagnostics and Eric from south main auto just to name a few, and so what if makes any money , I should hope he does I want to see someone getting on in life than not ,

[@DJ-tn7vj]

Been a SD premium student for the last year. Best investment i have made towards growing in the auto vehicle world

[@RandomYoutuber1023]

I owned this car with the same engine 3.5L V6 except mine was a 2008. I owned it since it was new from the dealer. I kept taking it back for this misfire issue and they kept telling me I was crazy. Come to find out, the VCM feature (variable cylinder management) shuts off the rear bank of Cylinders in 3 cyl or 4 cyl mode. If you check all 3 rear cylinders all the spark plugs will be fouled but the front is clean. This fouling problem happens on highway driving or coasting when cylinders are deactivated to save fuel. However the intake valves still open, thus EGR pumps soot and oil into the rear bank fouling the plugs but never burning the recirculating exhaust gases. So my solution was a cheaper 2 year spark plug change and I never had a misfire for the life of ownership. As soon as I saw this video I knew what it was because I owned this car for so long before selling it. It's not a horrible issue if you just keep up maintenence on the spark plugs. The engine never burned any oil, it was simply a problem with the VCM feature from Honda. Honda even provided a software update to help the issue. I never tried it. I'm not a mechanic so I didn't bother with it.

[@thizlamik]

can also be oil fouled caused by bad oil control rings

[@robertwhalley4266]

You got it. Also, echo comes on when it comes up to temp. A mode to trick the temp reading by reading the hose temp instead so echo never comes on. 5 degree temp change read will do it.

[@PistonShack]

RPM drop test is one of the most useful tests in my "toolbox"

[@detailedautodiagnostics]

I've lost count on how many years I have been checking out these videos...real time content....see you at training!!!!

[@ScannerDanner]

Thank you!

[@kc360awareness]

Love this style of realistic perspective diagnostics. All the way to the “gotta pay the grocery bill” perspective of the customer. Great job and Merry Christmas ti the Danner family. Praying for your sweet momma too. My wife’s currently dealing with cancer so my hearts definitely more tender towards those struggling with similar issues.

[@ScannerDanner]

Just prayed for your wife my friend. Mom is doing good! Thanks for asking. May the peace of God that surpasses all understanding be with you in this situation.

[@jakewrxdrift]

Hey, enjoyed the video. That Honda needs a VCM muzzler and of course a set of plugs. It has cylinder deactivation on cyls 1,2,3, it seems that it creates a vacuum in those cylinders pulling more oil in and oil fouling the plugs... keep up the great work Paul and Caleb, I guess Danner deserves some praise as well.

[@robertpope3619]

The VCM on my 2008 Odyssey was a contributing factor that messed up my motor. Once I slap the reman motor in it I am going to purchase that VCM deactivation jumper harness.

[@sambitar8448]

HI PAUL DANNER AND HIS SON, YOU ARE BOTH # 1 TEAM ON YOU TUBE, YOUR APPROACH WITH LAMBDA NUMBERS IS A GENIOUS IN THE MAKING. I CANNOT STRESS THE EFFECT OF BEFINITS TO THE AUTOMOTIVE INDUSTRY. YOU REALLY MAKE MY DAYS. YOU ARE THE THE SUPREME. GOD BLESS YOUR HEART AND SOUL FOR A MAGNIFICENT JOB. THANK YOU

[@ScannerDanner]

Thank you sam

[@dtandfam8100]

Awesome video! Love how real and candid the Danners are!

[@smilesmile392]

Merry Christmas Mr. Paul

[@benmoody2975]

Thanks Paul and Caleb as always for your great work. I hope you and your families have a great Christmas!

[@sambitar8448]

PAUL, YOU ARE BORN TO BE THE BEST INSTRUCTOR AND TEACHER AND TOP OF THE LINE AS A DIAGNOSTIC TECHNICIAN EVER.

[@adambailey3962]

Very common on all the honda v6s with VCM. It will continue to foul plugs on that cylinder. There was a settlement, extended warranty coverage, etc. around this issue. Great video, as always!

[@johnaclark1]

That car is out of even the extended warranty. Needs the VCM disabled. $129 for the VCMTuner, new plugs and it's good to go.

[@throttlebottle5906]

it just needs driven Italian tune-up style on the daily 🤣

[@uberdang830]

It's not just Honda. I've run into the issue with many manufacturers that have cylinder deactivation. I think it is not only the added vacuum but also low tension rings you see going in most engine's in an effort to reduce drag. All in the name of fuel economy.

[@artvance8251]

Great teaching video as always. From one grandpa to another grandpa, have a very Merry Christmas to you and your family!

[@careyautorepairs]

I love how understanding you are of the customers costs. You’re right you need to look out for the customer in this world of expensive bills. Paul you’re such a nice guy my man.

[@dr2man]

Great video Paul, learning something new every day.

[@garysasinowski6078]

I agree with you Paul; you can change a lot plugs for the price of a rebuild! Great video and info as always! Thanks.

[@Fishingmaniac1]

I love diagnostics ! Good info on the fuel trims as well !

[@markb1091]

Literally the exact same thing happened to my accord. Cylinder #2 plug went bad. I followed this step by step and it worked perfectly. Great job explaining the process!

[@lonetraveler5660]

Great and quick diagnosis

[@MoparMadness93]

Merry Christmas Danner’s! Hope you all have a great Christmas and remember what the day is really about!

[@billrimmer5596]

Super good vid. I liked the use of the amp clamp showing primary pattern. Also the order of the steps. Thank u! Excellent editing and camera work Caleb!!

[@chriscrusader5412]

You guys are an awesome team!!!!!

[@daryllauto-correctdiagnost5020]

For RC test on Honda quickly, use the All Injectors Off function. Then to return to normal select the Ecm/Pcm reset

[@gieauto7175]

Scanner Danner takes you back to the knuckle old skool. Good video👍.

[@moulayediag3873]

I love you and the way you work ... God bless you man

[@brianmason8400]

Perfection at its best.,...I don't know how many times I've used cylinder drop test to find misfires....

[@luismarty1685]

Happy holidays to you, your brother and Kaleb. I'm looking forward to more videos in 2022.

[@johnasosajr]

I’m going to be getting your book for myself for Christmas I look forward to reading it to create a base to build on

[@babatunde3992]

Thank you so much for teaching me all this.❤

[@geertvandenelsen6585]

Hi Paul and Caleb, Thank you again for this great video!! In my opinion it is always a good first step to swap the coil and plug to an more exessable location. Not only for easier acces but also to eliminate an failing fuel injector or enginefailure for that cilinder. For me an small step in between. Oké boys; marry Christmas and al the best for this new year. Cheers from the Netherlands

[@cullenmiller8170]

Nice easy one for once. Good old swaptronics work great. Just get two spark plugs and replace number 2 and put the other in the glove box with a cheap spark plug tool for the customer. Merry Christmas to all the Danners.

[@richhelm21]

'Quick n dirty' The best type of Danner Diagnostics! 😀

[@isalmankhan1]

WoW, Love the quick diag plan, instead of taking a different approach,I've been practicing this plan since I've started learning from you SD Stay Blessed Bro❤ Special Thanks to James Danner & Caleb Danner👍 Stay Safe Guy's❤

[@PistonShack]

Hey brother, I would recommend you to get the book "Engine Perfomance Diagnostics' ! I got mine 2 years ago, it has been most valuable investment ever.

[@isalmankhan1]

@@PistonShack Great suggestion Bro👍 Totally agree with you 💯% I got mine in Feb of 2020, had to request my uncle in State's to place the order with AESwave & ship it to me via USPS😉 Honestly it's the best investment I've ever made (it's an asset), & I can't thank SD enough for compiling all this knowledge & changing our lives, huge effort👍 It's a must have (must read) book for tech's anywhere😉

[@PistonShack]

@@isalmankhan1 INDEED, BROTHER! Take Care.

[@lloydballard7051]

I put a VCM Muzzler on my 2006 Odyssey and I love it. Installed at 163k. The issue I had was it felt like a trans mis-shift that occurred every time you came up to speed. In fact I hated to see the green econo light come on. Right after installing the Muzzler I did an oil change and discovered shiny metal in the oil. Tore the engine down and discovered front camshaft lobes were worn (163k) and 2 rod halves and 1 main half bearings were showing wear. Rear cam looked like new so did not change. Changed the cam ($300) and the bearings. Trying to figure out size/color of the bearings was a real hassle. Dealer totally worthless. So far so good. The engine always ran quiet so no change still runs great. Have not pulled plugs. Just got the Odyssey at 161k and it does not appear to use oil. So do not know history before I got it. I think the previous owner sold it because every warning light was one when I first started it. All easy fixes. TPMS/Traction was low tire pressure (nail in tire) and the check engine light was caused by a clogged screen on the VVT soldenoid. I bet the owner was not savvy and the $700 Toyota wanted for the new valve did him in. I fixed the screen for $10.

[@delcorick9967]

See that!! This is proper execution, excellent video!

[@mikeoneill7360]

Old school perfection, nice job Paul……

[@IAMNOSLEEP]

Thanks for sharing Paul... Cheers.

[@joejordan5879]

Merry Christmas to the whole Danner family.

[@thetransitofvenus8927]

Video quality is absolutely phenomenal, Caleb Danner!!! Brothers Danner, great video, as always!!!

[@calebldanner]

Thank you!

[@tigerksewsankar7667]

Merry Christmas to you and your family

[@tracydiller9378]

Great video guys as always and i agree new plug drive it.Be safe everyone and Merry Christmas and praying a better New Year.

[@douglash3129]

Hi Paul, and Kaleb, AND the Bearded one, great video, Nice to be working outside in December in Pa.Merry Christmas and A Happy New Year to the Danner Family!!

[@biglevstergarage]

Merry Christmas to you and ya family ScannerDanner

[@E85_STI]

I’ve seen the flashing cel as a knock event and a catastrophic failure but I’m lucky I haven’t had it on my car. A friend of ours had it on her Hyundai and the dealer replaced her motor under warranty. I’m glad you made this video as this accord has a J series engine and I have 2008 Acura tl type s it has the 3.5 but similar so if I ever have this issue I can reference this video.

[@ichi-goichi6184]

Thanks for all you share!🎄⛄🎄⛄ Merry Christmas to All and God Bless💓

[@emmanuelcruz6845]

Merry Christmas danner family!

[@RAFICKMOYO]

Thanks for your videos

[@daveg7878]

Great logical approach. Great content.

[@31terikennedy]

As usual, well done. Happy New Year.

[@MechanicTechnicianRepair]

Mui. Bien master. Excellent diagnosis. Mui. Bueno tec

[@jonascourtney5999]

Hello, Paul. Sorry to hear about your mother, praying she will be okay.

[@clapton924]

One of the smartest car dudes on KZbin

[@diehardcorefan]

100% Bad oil control rings caused by the garbage VCM system. I’ve rebuilt dozens of these motors for this issue, great vid love your channel 👍🏽

[@florentinomartinez8073]

Loved the content ❤️

[@dannyn5041]

Nice case study I would swap coils and plugs

[@mecanicaelguy5454]

Hi SD. Great video! Show us snap on truck on the rear

[@devious17]

fantabulous learning, wished my teacher delivered the education like you did.

[@ScannerDanner]

Thank you! 😃

[@Pablo_Automotive]

Thanks a lot team Danner and Merry Chirstmas for you and your family =)

[@GURU-qc8dd]

You simply Great bro...Nice video...

[@carlm2590]

I look forward to your videos 👍

[@whitetiger8652]

Thanks Guys!

[@UNEEK_LOGIK]

The SIGN says it all Danner… 22:25 Auto “PERFECTION”

[@ganeshnarayan5505]

Hey Guys Great video thanks for sharing Merry Christmas to you guys.

[@peterfaggella3120]

Great video Danner. As another automotive educator, I love your videos because you never forget about the simple diagnostic methods too. Understanding and utilizing both methods is much less intimidating for students than some others who immediately reach for the oscilloscope. Great video for my students. Thank you and Merry Christmas from Rhode Island.

[@PaulCTownsend]

Good job

[@d.d4184]

Nice fast work guys to the point. Your brothers shop is big. I have a one bay shop. Thanks for all your help. When I am back in the + I'll be back on sd premium. I have watched every video and taken every class with your book. Gold dust.

[@ScannerDanner]

Thank you so much my friend. Happy New Year!

[@watersmart1]

Scannerdanner is the man.👍❤️🇨🇦

[@turnerofthings]

Hey, Great lesson Thanks bra!

[@workwillfreeyou]

The Big Picture : You Will Become The Average Of Who You Surround Yourself With! That's a conclusion I've come to @ 62 YO. If you watch Paul Danner on a regular basis your skills of diagnosis will improve dramatically. Try using these skills in areas beside auto repair. Again, thank you Paul.

[@ScannerDanner]

Thank you my friend

[@YuckFou0x0FFFF]

Did this injector balance test before on my snap-on scanner. It allowed the vehicle to be running.

[@sumduma55]

It probably wanted to start the procedure from a stopped engine to take full control of the fuel delivery (or place it in open loop) preventing the fuel trims from going lean creating a false positive stumble. It might be that from an open loop on a cold engine, it can prevent it from going in closed loop and adjusting the fuel but once ots warm and in closed loop, it has to take it from start-up. They had it running for a while and there didn't seem to be any trouble codes that would keep the ecm from going closed.

[@beast36001]

great conclusion, i hope the customer not pissed to find out it was a plug. And get bent out of shape, for your charge for the diagnosis. My advice to him it better have 6 extra new plugs on hand, or the owner can get those non foulers/maybe hotter plugs too. I used the non foulers on a 80 POS malibu i had with a 229 V6 it had they do work!! Same thing that engine would blow through oil like crazy.

[@Bluegeek1]

Sometimes the Old School way is still the good way. You made me nervous grabbing the ignition wires/coils with the engine running. Electricity constantly searches for a path to ground and a willing conductor like the human body. Stay safe amigo

[@ahill007ny]

My customer has a 2012 Honda Odyssey had this exact problem a few years ago Honda did the rings and plugs for free under the recall. While they were doing the recall we inquired about the Timing Belt and they did the Timing Belt for half the price. Vehicle now has 265,000 miles on it no misfires about to do the Timing Belt again.

[@thecarguy306]

A quick way to do a cranking compression test on Honda vehicles would be to select “Injectors - all” under the “Functional Tests” menu. You then have to perform a “ECM/PCM Reset” after you’re done to re enable injectors.

[@lightenrod2]

non fouling spark plug ext.would prob.help to keep it fouling too soon too.i belive in them.good luck too yours.you have great down to earth videos big brother.have a good one..

[@josephwash109]

In a pinch, I've found that carburetor cleaner spray works great for cleaning spark plugs.

[@Enrightauto]

Good ol piston ring bulletin extension.

[@valhalla6ix341]

I was a gm tech for along time I did pistons almost daily for issues like this.

[@markraday8071]

Good video with a good mix of high tech and old school diagnosis. Like you said no reason to rebuild the engine for a little oil burning... How about more old school on the plug and take it for a ride and drive it like you stole it for a mile or two. It might clear out the plug. I had a family member with a early 70s Mopar 440 and I'd get a call that it was running rough. I'd take it out on the highway and let it breathe if you know what I mean and bring it back purring like a kitten. That car was insane LoL

[@RAFICKMOYO]

I'm gain knowledge each and everyday

[@derleo89]

That thumbnail is pure gold.

[@alexyou2995]

Nice video. I replaced my spark plug and fuel injector, switch the coil, the P0302 stay the same. 2005 accord 2.4

[@GIOVANNY434]

did you repair it?

[@andrewgonyou9903]

Dads car has this issue. After 3-4 year the cat did finally start causing excessive back pressure from all the oil that had been thrown at it, but new cat and new plugs runs great again. I guess we will run it for 3-4 more years!

[@Paul1958R]

Paul/Caleb, Great diag, fix and video - thank you! I would have liked if you could have re-done the cylinder drop test after Danner sandblasted that plug just to prove the fix. Oh well no biggie. BTW what is the deal on the old Fox Mustang that was behind the Honda? It looks like an '86 or older 'Four Eyed' 5.0L Mustang. Not many of those early EEC-IV babys still around. Paul (in MA)

[@Z14kt12timandjes1]

Nice video. So the 09 Honda engines have a piston ring problem that causes oil burning also? My wife drives an 07 Toyota Camry and it has the same condition. It's never given us any trouble at all. I just have a reminder on my phone to check the oil every weekend and usually it's just a little under the full line on the dipstick so I just top it off every weekend and keep on driving.

[@the666bud]

Not having any luck with miss fires lately Danner I had a misfire on a 5.3 LS turn out to be the valve Spring

[@mph5896]

Valve spring is easy. At least its not a bad cylinder or valve.

[@IamReadyToRock]

No miss: No más! 😄 from peru 👍🏽👍🏽👍🏽

[@albuendormir5264]

Wow, nice.

[@robertnicholson8054]

Nice on Paul. Pity is awkward plug it's never the easy one. Yes replace plug cheaper option.

[@theadventuresofjavier8698]

Merry Christmas and a happy new year my brother in Christ... Abuelito Paul.

[@mlieser1230]

In a situation like this where the cylinder is burning oil could you install a hotter plug?

[@mashamambea5704]

How now that was easy aweasome fix as you said for now.

[@eddiemoyo7283]

Hi Paul 👋, thanks for the vid. Please help me, what do you mean by "secondary misfire"?

[@jdtractorman7445]

Spark plug or secondary windings in the ignition coil. That means the car either had a bad plug or a defective coil.

[@jacqds88]

Minimooooooooooooooo excellent video and. I have the subscription also. Thank you master. Danner

[@ScannerDanner]

Thank you so much!

[@robertoruiz7069]

great video Paul,i liked the way you said your brother probably won't even change it.!! WHAT does surprise me is ,THAT he doesn't HAVE THOUSANDS of PLUGS just lying around. i mean what the hell? What is he ?A NEAT FREAK? does he throw all the old parts from cars away? haha i used to wrench 40 years ago and i bet i have a plug or wire from a model A car,ya the big fat ones,you never know when some restored MODEL A gonna brake down buy your shop.OH ya i also have one of those piston sand blaster,haha love your vids man.

[@ScannerDanner]

Thanks man, really appreciate it

[@engineerstv8077]

I am watching from Bangladesh

[@nickayivor8432]

ScannerDanner good Morning 🙏 🌄 ✨ Have a great day 👍 Take care ScannerDanner 👍 Great tutorial thank you 🙏 👍 📷 man great eye for film 🎥 thank you Take care.👍 From Nick Ayivor from London England UK 🇬🇧

[@johnaclark1]

This car simply needs VCM (ECO) disabled with a VCMTunerII. It's $129 or so and disables the cylinder deactivation. That and a set of new plugs and that car will most likely run many more miles. I run it on my own V6 Honda. 240K trouble free miles and counting.

[@FOCUS-777]

Paul would it be okay to put anti fouler extension If it's burning oil only on 1 plug help and extend the duration and life of that plug?

[@The_Redkween]

Oh, that 5.0 Mustang next to you guys. What a sweet car.