SOLVED P1399 Honda Acura V6 Accord Odyssey Ridgeline Pilot CL TL MDX Random Cylinder Misfire

[@jackjones9460]

I most appreciated you using the engine noise or silence as background noise. Being able to hear how my engine should be sounding was great. I’m one of many with trouble understanding speech when there’s background noise. It’s such a distraction! When the music started at the end, most of the video was done anyway. Thank you.

[@LivingLovingLaVee]

Most complete video for me❤

[@cer2us]

Code also pops up when you have low valve clearance or a clogged EGR valve .

[@zacharymcmullan707]

So would adjusting the last to a tighter clearance make that better.

[@zacharymcmullan707]

The low valve clearance

[@cer2us]

Low valve clearance means it's already tight to begin with , so no . In fact I would ever so slightly loosen up and make sure you are using the correct feeler gauges when doing this adjustment . I do recommend that you have a professional do this task for you .

[@chancesmall7026]

@@zacharymcmullan707 p1399 can be from many different things you have to narrow it down start with easiest which is air no bad gaskets or vacuum leaks and map sensor/air intake filter is good check for spark if spark plugs coil packs and sensor connectors are all clean and fuses are good check valve clearance to see if you need an adjustment. If so then an adjustment will fix it if not fuel injectors/fuel components is your last resort. Codes aren’t an exact science gotta track it down

[@LivingLovingLaVee]

After i watched this video i told myself I am subscribing to your Channel RIGHT NOW.

[@runningbear4666]

Right someone always comes up with better ideas for life of others or masses

[@robinriviera4226]

How can you distinguish the bad injector from the good one?

[@818sylmarcali9]

Ok cool so the code is it the injector messing up or the EGR

[@jasoncondra3235]

On a 99 accord 2.3 could a bad fuel filter cause 0301,0302,0303,0304,and 1399 new plugs, wires,egr,knock sensor cleaned passages

[@aasimmons]

Great instructional/informational video. No fluff. Just business.

[@brianoxley7195]

Does it also causes your spark plugs to burn easy n is it causing a longer rpm at shift once you giving the car a lot of gas like full throttle it jerks a lil I just replaced transmission so it can’t be that

[@Mr_BUSINESS_24_7]

What years had bad injectors ? Why does a misfire in one cylinder cause a 1399 ?

[@bundysgarage]

Any vehicle can have issues with with fuel injectors, any year range as well. The reason 1399 pops up is because the engine knock sensor cannot determine which specific cylinder is misfiring, so it just throws up a random misfire. Just like all parts they do wear out and they do go bad, but Honda has some of the best fuel injectors out there, they don't fail all to often but they do fail.

[@Mr_BUSINESS_24_7]

@@bundysgarage yeah, I know honda has really good injectors. The only honda injector I ever replaced was on a '92 integra LS. But I have seen others replace injectors on '86 to '89 Accords. But extremely infrequently. I worked at Honda from '97 to '00 How did you narrow it down to #6 injector ? Can't really pull off the injector connectors with the engine running, and the manifold has to come off to get to the injector connectors; I believe ?

[@foongU]

What gasket was it did you say the ones that have the paper towels in the intake manifold ? Also what motor is this? Doesn't look like my 2002 acura mdx motor?

[@MyJR3]

I’ve changed coil #2 (which gave codes) and all spark plugs.. also cleaned out all the muck and grim out in the first removed cap on the head .. I’m getting misfire codes still could this be carbon due to high miles ?

[@bundysgarage]

What codes are you getting specifically?

[@MyJR3]

P1399 but I noticed there’s a lot of carbon build up any recommendations on how to clean it out ? I bought the van at a auction with high miles and without inspection stickers so I really don’t know how long it’s been off the road

[@Stevewilliams09]

How do you know which injector it is??

[@italianozuzu1232]

I change all spark plugs and injectors so idk what's wrong with mine

[@efrensaclolo7021]

The last time that happened to my 2002 Honda Accord, Just changed the EGR valve and it is still running fine to this day.Those random misfires are caused by EGR or its passages is blocked by carbon or gunk.

[@andersonnitrous8]

Efren Saclolo hey I have a 1998 Honda Accord lx manual transmission, yesterday my car wouldn’t stay idle when I make a stop, the engine light came on and I got this same code plus a few more indicating a misfire. Do you think replacing the EGR would solve the problem like you did?

[@knightryder559]

So did you change the egr?

[@bundysgarage]

The EGR and fuel injectors are two completely different problems. You have to do some diagnosing to determine which one. The code can come for all kinds of reasons. Bad spark plug, bad coil, bad wires, EGR, bad fuel injectors. If ou have carbon build up issues try using a top tier gasoline and put a can of Berryman’s into the tank with a complete fill every other oil change and that should take care of your carbon issue.

[@WilliamJackson-pz6pu]

There are 2 sensors on the thermos housing one points straight up and one horizontal( this one has thermostat behind it ) Do I replace both of those

[@bundysgarage]

What is the year make and model of car you are working on?

[@user-vd9fz5ey9m]

So don’t worry about any of the other misfire codes?

[@definitionXrp]

I only have code p1399....the worst 1...not the other 1s ..what could it be?

[@NYRican1505]

I have the same codes for my 2000 honda accord p1399 and p0300 p0301 and so on... is it the fuel injectors? I changed the coil packs and spark plugs

[@bundysgarage]

Does it happen all the time? Or after driving does it clear up. If you have tested compression, and spark? The only thing left is fuel.

[@NYRican1505]

BundysGarage it does it once i drive the car for a while, when i shut off for about 20 mins and when turning on it does and it just shakes and turns off with the lights on the dashboard still on, i have to accelerate while turning on to keep it running

[@NYRican1505]

BundysGarage and yes compression is good

[@kevinbyrne4181]

Great clear video, loved the opps with 8mm bolts (I do the same). Thanks for making this one it helped alot

[@bundysgarage]

No problem 👍

[@amadofigueroa1867]

😅🎉innovador😊

[@ray46rs]

Where is the location of the 2nd and 3rd clutch pressure switches? Thanks

[@Mr_BUSINESS_24_7]

Google it. "2nd and 3rd clutch pressure switch on 5-speed honda Acura automatic transmission images"

[@ehulisesrodriguez7648]

Had the same problem with 2002 acura, it ended up being a weak ignition coil

[@bare_axe9624]

I got the same car and the same codes poped uo

[@mrweisu]

Why did cylinder 6 misfire cause computer to send all these codes for other cylinders? Honda got bad engineers or computer programmers?

[@bundysgarage]

The knock sensor sits in valley and sometimes it gets confused and sends out the P1399

[@kristallopez482]

Is that the correct psi for odyssy also?

[@lineartechbd1600]

I have a 4cyl accord with the P1399 along with a P0300 , P0301 etc, all cylinders measured around 180psi COLD except for cylinder #3 which is at 0 psi. Could this be anything besides a bad valve? Maybe a bad injector seal? Can a slipped timing belt possibly cause this 0psi ? I am just hoping for a miracle because I don't feel like taking out the head.

[@commonsense3673]

Cleaned the EGR valve recirculation valve and took it all away

[@Mr_BUSINESS_24_7]

Took what all the way out ?

[@axjohn]

“Try not to drop your nuts.” 🤣🤣🤣🤣

[@WilliamJackson-pz6pu]

Bundys knows their shizz very intellegent man

[@DANNYN224]

i did the valve adjustment 2 times did not help i cleaned the egr valve put it back did not work got a p1399 code and p0305 the motor was an jdm motor bought from nj i dont know what to do

[@bundysgarage]

Have you tested the coil or the fuel injector? Spark plugs?

[@juanlanda2441]

get a chevy

[@Usmanthemecano]

@@juanlanda2441 lol

[@DANNYN224]

@@bundysgarage yeah I changed the coils and the code came back i think it is the fuel injector because the customer is telling me it is burning fuel to fast dumping fuel

[@kevinvaughan5671]

1399 on my 03 odyssey was the throttle position sensor

[@acihawaii]

unable to remove rear spark plugs just too hard even with leather gloves

[@rohanmuzik]

had in the wrong injectors engine sounded like it was starving. after watching this i know which ones to get thanks

[@bundysgarage]

How did the wrong injectors get on there?

[@rohanmuzik]

@@bundysgarage I bought the car like this. After watching your video im like why do they look different so then I did my reseach and they are tiny compared to what you had in your hand.

[@TheTkd2012]

mine had this code p1399 damn it looks hard work for me

[@lothianmcadam1]

If you have the tools and the time, and you can stay organized and focused on the task, swapping out the fuel injectors isn't particularly difficult. This presumes you're t'shootong a P1399. That code may also be caused by fouled plugs or valve clearance that's out of range . Removing and cleaning carbon soot from plugs is relatively easy. But doing a valve adjustment is not for the faint of heart.

[@Avatheskibidiaplphadog]

What injectors do you recommend?

[@bundysgarage]

BWD from O’Reilly Auto Parts is a good injector. If you can afford it go with Honda OE.

[@Avatheskibidiaplphadog]

BundysGarage I have the same codes plus EGR flow and CAT Flow Efficiency. My son drove it like that for 2 years.

[@iam2ndIIno1]

Do you have same type of video for a 2k Honda Civic?

[@bundysgarage]

This applies to all engines, not just the Honda V6.

[@brianbuckner1787]

I'm watching this on Daylight savings day spring of 2018 lol

[@pacheco464]

Its the injector problem then ?

[@bundysgarage]

Yes it was a bad injector. Honda / Acura injectors don’t fail very often but they can and in this case it was a bad injector. If it’s stuck open dumping fuel your check engine light will be flashing. If it’s stick closed and no fuel is coming out then you will have a random cylinder misfire and or multiple cylinder misfires.

[@rickjulian6494]

Man i have the same codes tht you have and im hearing differnt stuff i have a honda accord 2002 3.0 v6 can u answer some questions for me brother 514 883 2014

[@bundysgarage]

Yeah i willcall you tomorrow morning.

[@rickjulian6494]

Ok sounds good brother

[@rickjulian6494]

I will be working till 3pm ontario time

[@ginabarre8698]

Awesome

[@martinlopezlara5213]

thank you for sharing this great 👍 video, Master mechanic

[@24reyeser]

So its the coil packs? Confused...

[@bundysgarage]

No the fuel injectors

[@jirojosephesman8175]

Thx for a great video...do you have a video for a 2000 sienna how to timing belt change thx again for your kindness..God bless

[@bundysgarage]

+jirojoseph esman thanks for watching. I don't have any for the Toyota timing belt, but see if this video might help you: kzbin.info/www/bejne/jICThqt_iqZ7gNk

[@WilliamJackson-pz6pu]

My 2001 odyssey fails to start after been driven for over an hr cut it off immediately cranks right back up but wait 10 mins and crank it will fire up then stumble and shut off any help 02s have been replaced coils plugs iacv and map sensor and if you push the gas down hard it will bogg and sputter help please 9107487823

[@bundysgarage]

You have the dreaded heat soak issue.

[@bundysgarage]

Here what you need to do to fix it: follow the instructions exactly. You have to change 3 sensors, 40 bucks on Rockauto.com. You have to change the engine coolant temp sensor (19MM), the air intake temp sensor (19MM) and the fan (thermo switch) (it controls the fans behind the radiator) (24MM or 15/16 deep socket) sensor that sits in the thermostat housing. The air intake sensor is on the intake manifold on the back edge towards the drivers side. Here are the Honda / Acura park numbers. Just take those and plug them into the search bar on Rockauto.com. Fixed the problem for me, period. 37870-PK2-015. 37880-P0A-A02. and 37760-P00-004. Just make sure you don’t switch the air and coolant sensors when you install them. They look identical and will fit both locations. Please let me know if this fixes your problem. If you have any more issues email me.

[@WilliamJackson-pz6pu]

@@bundysgarage thanks I have changed everything but those 3 sensors I will replace them and let you know how it goes thanks alot again

[@bundysgarage]

Please let me know how it Goes after you do the repair.

[@WilliamJackson-pz6pu]

It was my knock sensor mr Bundy

[@lejuanrhodes3958]

I have the same codes 2002 Acura mdx po 300, '304,po 306 ,1399

[@bundysgarage]

It could also be a carbon issue. Try running B12 thru the fuel tank on a full tank of gas. Is the check engine light flashing?

[@Avatheskibidiaplphadog]

You solve it?

[@robomania6164]

@@bundysgarage my check engine light flashes while driving. I just cleaned intake and egr ports. They was super caked but same p1399 code only, next to check is coil