Misfiring Engines With P0301 Code
Scotty Kilmer, mechanic for the lat 46 years, shows how to figure out what's wrong with a car that's misfiring and has the check engine light on with code P0301 stored in memory. All you need is a brain and basic hand tools.
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Things I used in this video: 1. OTC Scan Tool: amzn.to/2BIwPtc 2. Ratchet and socket set: amzn.to/2inoxOY 3. Mechanic’s Tool Set: amzn.to/2Bzmccg 4. Wrench Set: amzn.to/2kmBaOU 5. Shop Towels: amzn.to/2jGDfkA 6. Disposable Gloves: amzn.to/2zSRuxO 7. Common Sense 8. Full HD Camera: amzn.to/2AvoEk7 9. My computer for editing / uploading: amzn.to/2i2sKYz 10. Video editing software: amzn.to/2jv5Fhf 11. Thumbnail software: amzn.to/2k7tz6C 🛠Check out my Garage to see what I use every day and highly recommend: www.amazon.com/shop/scottykilmer ❗️Check out the Scotty store: goo.gl/RwhRGU 👉Follow me on Instagram for the latest news, funnies, and exclusive info / pics: goo.gl/ohy2cA
Scotty Kilmer Hope your day is going good. I wanted to ask if its fine to drive a 3.0 v6 with one of the sparkplug not working. Technically its not misfire. Its the whole time. Loss of power. Head gasket is good no smoke coming out. Is it fine to drive my car with 5 cylinders working and not one? Also could it be a lose wire or distributer?
Where's the link to 'common sense', lol!
All that unburned gas could wash the oil off your rings and get into your crank case. A master mech once told me that after getting a low compression reading... said the oil from misfire washed the seal off the rings.
I have a 2004 Honda civic lx . Went to auto zone they told me 4 cylinder misfired I changed all 4 spark plugs and still have 4 missfires help
I subbed.
I love you. Seriously I do. You *actually* tell people what to do and how to fix things (also what not to waste your time on). As a single mother on one (LIMITED) income and "intermediate" knowledge of auto mechanics...you help me tremendously!! THANK YOU!!!!
javier josefides Huh?
@javier josefides a female telling a male that sounds gay to you?
WOW. Skip the chatter, right to the point! I like your style. Others would have needed 25 minutes to explain that.
LOL Ur cat wants to come out of the house! 3:04
I thought you said the cat wanted "in" the house, and of course then I saw it pawing at the from inside glass..hahahahahaha...
MrRangerZr1 Ha 😆 I didn't notice
MrRangerZr1 Lol!!! Good catch.
Hahahaha what a catch
Haha 😂
If I had a shot for every time Scotty said "flat worn out" I'd be flat worn out
Hello Scotty, last weekend i had a warning ( check engine ) . I checked my engine with the ODBII and had a code P0300. I replaced all 4 sparkplugs and now my engine works great and have no warning signs. I did another check with my ODBII and have no faultcodes. With the help of your video i saved a lot of money and my engine ofcourse. I made also a testdrive and everything is smooth...So Scotty thank you for your great tutorials. Gr.Marc from Belgium.
Scotty I love your videos. I wish I could find a mechanic even close to you. My mom has been robbed by the stealership for fixes that cost half the cars so I appreciate you giving me the knowledge to try and help my family out on a very limited income.
Hey Scotty, I just used the switching the coil method for my Mercedes C300. It worked perfectly because the problem did move to the other cylinder. Thank you for the knowledge you pass along.
Scotty is the grandfather of mechanics! I’ve been getting help from him since I got my first vehicle 10 years ago
Learned so much more than just the spark plugs and ignition. Now I know when the engine is worn out and should just be replaced or trashed and shouldn’t put all that effort into an engine rebuild. Thank you Scotty!
I’m glad we’re on the same boat
Thank you Scotty. Ive been working on my Mother In-Laws car today, a 2011 Chevrolet HHR. You just help me figure out what's wrong. I watch your channel religiously!!!
Your channel is without a doubt one of the very best. Keep it up Scotty 😊
I am so grateful for you scotty!! I’ve watched so many of your videos and continue to learn from you!!
Scotty, when I see these videos I appreciate even more my Honda and Toyota..
carlo mango I agree, Toyotas are the best.
I hate that P0301 code....with a passion...
Why?
@@microdeath666anything could make it happen could be vacuum, spark, air or some random sensor causing a random misfire it's a pain to diagnose
I feel ur pain.
Me to
I fixed my problem. Spark plugs & 2 new coils.
This is by far the best video information I've heard on this subject. Great job
Hi Scotty. This video helps me a lot, I mean, after all research on KZhead and internet, I came to conclusion that my Nissan Pathfinder 1999 with more then 212 k miles on it, actually getting to the end. The last step left for me to check is compression test. I did almost everything to fix missfire on cylinder nomber 3 with code PO303 and also PO300 as wll which is one of the worst codes one can get. ? Spent good amount of money to replace O2 sensor, EGR valve, spark plugs, wires, brand new fuel enjector for no, 3 ., also I replaced both valve cover gaskets which is pain in a butt expecially driver side undr the plenum. . I've had some confidens in myself and I beleived if I do all that I may fix it, . After all that I did test the car and nothing has changed. The car still shaking when on stop and cant drive up hill more then 35- 40 mph. So I will do compression test and if it's too low, I will sell to junk yard.
this guys great always on point and extremely helpful, thanks scotty
I really like your videos. I bet you'd be fun to drink a few beers with lol. I rarely need any advice with auto repair, though I have learned a few tricks from you that I just never had thought about before. I just like to watch your videos. Keep up the good work!
Guess them Piston Rings are Shot. Changed my oil and transmission fluid & Trans Rear main seal on my Firebird on Sunday and listened to your Sat Live show while doing it, sure is a pleasure to have you under the car with me Scotty :) Modovates me to get the job done
Glad I found your videos. I'm having so many car issues with this dumb misfire code.
If the Audi was pre-2009, it's most likely carbon build up. The FSI engine is the most carbon build up prone engine ever. It was VW/Audi's first turbo 4 with DI. The engine wouldn't be wearing out, those are solid engines. But as you said, it did lose quite a bit of compression.
Always loved your videos, very short and very explicit. By the way, you forgot to walk the dog 3:05
I searched misfire on your channel and it seems you do a new one of these every year lol. Which is helpful, since I plan to look at a 2000 Crown Victoria with 240k miles tomorrow that misfires but only when it's warm and accelerating. Not sure on the code yet, but thanks for these videos!
THANK YOU Fixed my own engine today for $4!!! Bless you bless you bless you
Wha did you do for 4 bucks?
Thank you for this video I swapped the bad coil number 3 and swapped it to number 1 cylinder drove it for a while and it gave me p0301 which was cylinder 1 swapped the coil and misfire code was gone thank again for the advice
Thanks Scotty! Confirmed my suspicions about expensive imports. Your videos are awesome Bro!
What suspicions? Do you know what's the mileage of this car?
Oldie but goodie! Just had this problem on my 2003 Nissan Sentra 1.8L. P0301 even after I did this time proven Scotty Method. I guess I'm running it till the wheels fall out. Thanks Scotty!
Loved the fact he was str8 up about it and got to the point quick 👍👍👍👍👍👍👍👍
It could also be the head couldnt it? Like maybe the valve stem seals leaking?
Thank you for your video it saved me thousands! Your tricks worked like a charm.
Fixed my Mazda CX5 with a Battery and spark plugs swap. Thanks Scotty!, 2015 226,000 and still starts right up and runs smooth
anyone else notice the cat at 3:06?
lol
Lol Let me out!
Guy Garic yes i gat it kkkkkkkkkkkkkkkkkkkk
😂
hahaha in the back left window at 3:04.
lol.. but damn that was a hard detail to notice !
Nice cat photo bomb.
i literally came to the comments just to see if anyone else noticed it! lol
Jason Byers lmao
Scotty I like your common sense approach. Favorite car repair channel :0)
scotty kilmer is the best.... about to fix my tahoe 96 cylinder 6 misfire thanks to all of kilmers misfire videos
Scotty, If the air cleaner is not properly sealed you'll get crud on the plugs. Not necessarily "worn out" !!!
0:20 an audi in its natural environment
U aint lying lol
Story of my life
Try a Volvo sometime.
Looooooooooool
B6 s4 here
love your vids, Scotty. 101st Airborne Infantry Vet here as well, brother! (1-506 Snipers)
You rock Scotty been helping me with alot of issue I've had on 3 different car thx 😊
How old's the Audi? It looks so new from what I see. Shame the engine is bad.
The b6 chassis (I know it's one because it's what I drive right now) lasted from 2002-06
If it is the turbo then you can bank on it being driven hard and fast....imo.
can an oil leak cause misfire? ive noticed my 03 passat has serious oil leaks....
yes, espeicially head gasket leaks will
Scotty Kilmer Thanks
SCOTTY, when I replace my spark plug, the old one, have brow stuff round the 5/8 lug.
Best car videos around KZhead, but you gotta love the cat in the back behind Scotty's left shoulder at 3:06 scratching the window profusely🤣🤣🤣 cracked me up.!!!
Its so strange Scotty! You usually post a video of something I've recently dealt with on a friends car or my own.
Scotty you are a wizard! :D
If you like my car help, be sure to watch my live car talk show every Saturday morning at 10 AM CST on KZhead. I answer your car questions LIVE there. Just check it out at How To Ask A Live Mechanic Car Questions Free On KZhead . And remember, every TUESDAY I upload a new video, so don’t miss them.
Scotty Kilmer Scotty have a 2001 Audi A4 Quattro turbo 1.8 L and I have already replaced the housing for the ignition coil connectors. I am not sure if the ignition coils are damaged but when I replaced all the pins and the housing all the wires were either damaged or broken. Soon I will need new wires for the system to work properly but like you said I will start with the spark plugs first. It is running real rough and got this when I went to my local auto zone: P0300 random/multiple misfire detected P0302 Cyl 2 misfire detected P0171 fuel system too lean cyl bank 1 P0011 ?A? Camshaft position timing over-advanced bank 1 P0301 cyl misfire detected The first connector had all wires broken and I spliced them together but seems like it didn't work, what is best to do?
Juan Higareda I might be a little late but. You might have faulty wires to your computer or bad crank shaft sensor. But it could be a bad timing belt.
hey scotty when ever i drive my brothers car and come to a complete stop the car vibrates and the rpm go up and down slightly the car is a 2007 mazda 3 2.0
+Kevin Yaretz do my video "finding engine vacuum leaks with a cigar" and also "how to fix a car that idles poorlY"
Hi Scotty, You see on a lot of these Consumer Reports most reliable car brands that Subaru is on the list. Do you find this to be the case? Or is subaru still having oil burning, coolant and headgasket issues?
I have an '01 Subaru Legacy and the engine has been fantastic. Owned it 10 years now
Glycerin fluid film it or krown spray it so it doesnt rust out
Scotty love your channel. I have KIA Spectra 2001. Should I use spark plugs IKH16 or IKH24?
Hi Scotty I love your channel! I’d just like to ask your opinion on something, what’s the most common reason you’ve seen for code po301 on a Chevy Colorado? The trucks a 06. Thank you so much!
Worn out engine at 150.000 miles. German myth busted.
Like Scotty said, changing the old is a good thing. Also, the older German engines were better quality and made to last. my mercedes 190E 2.6 has 215,000 miles and runs like a champ, and I can pull a plug and it'll be so shiny you'll see your reflection lol
Well it all depends if the person took care of the car properly or not, Sometimes people who guy those Luxury German cars or Luxury cars in genral forget that regular maintenance greatly improves your car's life span.
HyralProductions I bet that you are not driving a post 2000 german car. If you would, your 318i would have shat itself a long time ago. Modern cars are disposable. You buy it. Drive it until the warranty expires and sell it to next poor soul. Even though materials are stronger and more wear resistant then ever, the engineering is intentionally flawed or better said geared towards costs and efficiency rather then longevity. Nothing would outlast a 70's merc engine. Just look at the very appraised BMW 2 litre diesel, fitted to most of their cars since 07. They moved the timing chain towards the back of the block and it fails quite often.
Tyrone Ross except alot of cars in the late 60s, 70s, and early 80s were crap. Also with new cars now, not all of them are throw aways, it depends if someone's willing enough to keep the car after 5 years or not.
I had a '96 Mercedes C200 that had 228,000 miles on it before it finally died from ECU failure. Up to the point it conked out it drove like a car with less then half the miles on the clock.
Idk why I'm watching this like ima pop the hood np. I don't know wtf im doing here?!. Lol I guess my car just likes to dance why would I stop that ..keep pushing!!!
sunshine you look fine!
Scotty thanks for this information , yesterday while driving on highway my light was going on and off . My truck started to sputter at times had it checked it was number one starter coil in my nissan frontier 2.4 engine ! sould I replace all plugs when changing this one coil because in order to get to number 2-3-4 plugs I must take the whole top of the plastic hoses and things off , lots of little things and what does a mechanic normally charge to do this ?
Nice one man keep going with this very useful videos,
There seems to be a lot of unnecessary Audi bashing here. These cars are complex and require diligent maintenance. There were obvious signs of neglect in this car: the "Service!" warning was on and spark plugs were filthy. Since the first owner would have had their service done under warranty at the dealership, I wonder if the second or third owner actually did proper maintenance. A competent mechanic would have alerted them to the "gunk" on the spark plugs had they been replaced every 3 years according to the manufacturer. More importantly, how frequently was the oil & filter changed and/or topped up? P.S. The the engine has 152k miles...hopefully the timing belt was already changed!
I agree my audi diesel has 234k!
yeah bmw's have tons of problems with the chains
vismortis yes Audi's use timing belts. they're a pain in the ass to get to b/c you have to dismantle the entire front end of the car. it's one of the worst designs ever. so if you're ever doing a timing belt service on an Audi, replace any and all wear & tear items in there. bc if it's not bad at that time it will go bad eventually and then you'll have to take everything apart all over again.
Is it the direct injection the problem causing wear because the intake ports are clogged with EGR/blowby crap ?
before the gas goes to the intake, there is a Oil/water separator, right? I am not sure if catch can works, I think it is a scam
No,only on diesel fuel system. "catch can" are for gas engines only. They work if well designed but there are not from factory on cars. That's why i think it caused wear on this engine.
I believe the trouble is that the gas is injected directly into the combustion chamber, thus making the intake valves and the piston in the compression cycle work only with air around them. Though it may look rough, gas for a part plays the role of coolant and lubricant in an engine. That's why you got to choose wisely your gas and not just take the cheapest, for your valve's sake
Ok. i agree,same problems on diesel engines : the intake valves are full of blowby /egr deposits. but here the loss of compression is not only caused by leaking valves no ? cylinders/pistons wear ? too much heat ? What wore out ?
michaelovitch piston rings ? because of compressing air without fuel ? diesel fuel is greasy and may be sticking to the cylinder walls, but not gasoline ?
The video was useful and you have a wonderful and funny style, thank you 👏🏻. I have a question - can the type of oil in the engine be the reason for spoiling the engine?
Thanks once again Scotty, got an Audi A3 that misfiring and wasn't best looked after. Was going to do some ither work on it but after watching this will just keep changing out the sparks until its done
Carbon buildup on the intake valves due to direct fuel injection may be the problem on this one...
supposed to be...a carbon on valves and within the intake manifold.
Common problem with fsi engines especially if they are used in town
do you think having the dealer do a chemical decarb or using bg44k can help?
Can help a little but is far more efficient to clean it manually, specially the back of the valves (is not that expensive). Extreme cases need a total rebuild to clean everything and that is VERY expensive.
Perhaps some sea foam could help a little
Japanese cars, they last forever.
Uh.... DEFINITELY NOT lmao
Lol
Nissan is my biggest trauma ever!!! Beautiful and fancy, but fragile as hell!
Not really... get a Toyota instead
BMW forever
Love ur videos, u get right to the point
Your videos are the best man.
Lmao. German cars. No wonder ive seen LSx swaps done on BMWs.
smh... buy a toyota or lexus. engines last forever
Scotty, you are the man, right to the point.
You make it look so easy💜 but easy also to understand 💜 thank you and subbed
Oh look it's an Audi.... not a surprise. You buy expensive stuff, you get crap in return.
My ass
You get crap if don't care about your car...If you do a proper service once a year and oil change at every 8000 or at least 10000 km, any car will run fine for a longer period. In my mind the only problem with these german cars is the owners.
Gabriel Ionescu but sometimes a car really is just crap
austen cody not audi
My audi has 235000 miles. no problems. Japanese cars are bland and american cars are made with poor quality products.
Woah that Audi sounds like shit. They're not the most reliable cars but this one was flat out poorly maintained. It boggles my mind how people can be so clueless about cars, I bet the owner just wanted a fancy badge but didn't want to maintain the car. There's a big difference between being able to buy a car and being able to maintain it.
Great Content . Simple and Easy
Always love Mr. Scotty: fast smart saving advertising.😁
Bad maintenance
Wow. this is another reason i only buy Japanese.
The only time I would by German was when I was stationed there because every other type, especially 4x4s and pick ups were impossible to find parts for.
very good video Scotty, love so much
damn dude! best bloody video i have seen about misfire problems on germen cars🤙
That has nothing to do with German cars. It's because the people owning them don't take care of it.
thats a lie, I have a 2012 gli. I use always change the oil and do routine maintenance. Never in my life have i had a car that is so problematic.
That audi is still better quality then your american made cars. The reason the engine is worn out is just because it wasnt maintained good enough.
Audis are crap garbage chords I buy and sell cars and every time I come across the Audi they got engine problems so you mean to tell me that every single person that I came across who owns a busted Audi was the owner responsible
Great advice for checking the coils.
I like the way you tell it like it is Scotty!
Wow this really helps with my understanding of my code! I’ve been trying to fix this for a while ! Sadly it still doesn’t drive ! My car for some reason threw that code , then it stopped accelerating while in D ,3 , 2, 1 . It goes in reverse perfectly good though 😅
Hey Scotty love ur videos I have 5 codes coming up for po 300,301,302,303,304. I know they r for sparks plugs and wires. I replace them all and I’m still getting that codes. My check engine light is blinking on and off when I’m driving what else can it be. I drive a 2005 Honda Civic ex can u tell me what ur could be and how much would it cost me to get it fixed thanks.
To the point and informative, thanks.
Lolll your very good my friend, your kind if savage when you explain the state if your clients cars though 😂, but all in all very professional!
Hey Scotty i have a question i have p0301 and i swapped the first coil with the second one and im not sure if its possible to tell because it only misfires when its from a complete cold start and then the code was able to appear if it was warm the code doesnt appear. So would that rule out the coils or sparks since is seems to only do it when its from cold start.
Hardly speak out on the interwebs, that being said you bring an awesome edge to diy channels. Keep it up brother!
Can you please talk about DEFECTIVE VCM/ECO in Honda vehicles and the suggestion that we muzzle them? Thank you for sharing your mechanical knowledge with us.
Hey scotty my 2010 prius check engine light came on and in read a misfire on cylinder 1. My mechanic replaced the cylinder and still doing the same. What do u suggest. Or what should I do ? My odometer reads 119,000 mi.
I fixed this problem on my 2003 A4 last night it was fuel injectors. I changed out all 4 and the problem went away instantly. I had already tried the plugs, coils,and was about to do the PRV and PCV valves. I think oil leaking out of the dipstick tube got into the injector wells and over time seeped into the injector housing of cylinders 2 and 3. Watching Spectre in the theatre made me rush to get this job done so I can go driving at high speeds again. Thank you Daniel Craig!
i have a p0301 code but I have oil in 1 of my spark plugs, I'm guessing its my valve cover gasket but im not so sure, what do you think?
Hey Scotty, I have a P0301 in my 2006 Chrysler Town and Country 3.8 liter V6. I replaced the coil pack, wires and spark plugs. Still gets the misfire. I held a big screwdriver against the fuel injector and I can hear the tick so it should be working... Any other thoughts on this?
Hey Scotty, i was wondering something about my 93 paseo, ive noticed that my RPM gauge is off sometimes. im not sure whats causing it but when i start my car it will show about 100 rpm when i know its higher. But there will be some days that is will read right or just slightly below, what would be causing this?
Got an exquisite 2004 Nissan Sentra 1.8L Turd, P0301 and Pending P0300. Swapped ECU, Coil Packs, new injectors, PVC valve, New Variable Cam Timing Solenoid, new MAF. Found I have a clogged exhaust (seperated manifold from engine block) Idles now but still P0301. Piston head wet with fuel, spark plug unfowled.
Scotty, my 3400 SFI V6 on my Chevy Impala has a misfire on cylinder 1. I haven't done any of the tests yet but this was an issue that just popped right up with no warning. It's been very wet and rainy here for the past week or so and not only have I driven on a lot of wet roads, but I also went through the car wash yesterday. Is it possible I could have water fouling things up or can these misfires just pop up with absolutely no warning at all? The car was absolutely fine driving most of the day today and as soon as I started it up after sitting for about 2 hours, the check engine light came on it's riding rough unless you floor it, then it seems to work better which is strange. Being Christmas Eve, I was able to hop down to advanced auto parts and they diagnosed it as a misfire on cylinder 1. I won't be able to really do anything with it on Friday but something else that's bothering me that I can't get an answer to, you can hear the car puffing in the back and when you put your hand in front of the tail pipe, you can feel very hard puffs of air coming every second or two. It's not a constant stream of air like usual but it's almost like it's not working right. Does this sound bad for me or something that could possibly easy to fix up? The engine has only 123,000 miles on it so it shouldn't be warn down yet. I had the intake and head gaskets replaced as well. It's frustrating because I've honestly had nothing but problems with this car and if I had the money, I'd trade it in for something else but for the duration, I'm stuck with it. I should add that I have recently had all plugs and wires changed, so they shouldn't be bad, but the key word is shouldn't be.
Hey Scotty, i have a 2002 honda civic ex ,manual transmission. I developed misfire on all 4 cylinders.i change sparks plugs,coil packs and fuel strainer in the tank but the problem still persists..im not sure what else to do.
I see a a lot of videos on the code p0304. Most of the videos show the mechanic replacing the ignition coils and spark plugs. I have the same code, misfire 4 cylinder. However, I replaced those about 6 months ago. Just to be sure- did a ignition coil and spark plug swap, after that kicked up the same code and problem while driving. Could the problem be the injector?
Great video Scotty, I had two misfires in my Toyota 2001 3.0L V6, 278K. I did the test you did on about switching the coils and found out it was the coil. I still put new spark plugs, New coils, and new spark plug cables. The misfire it's fixed and it runs great, but now I have a P0325( knock sensor bank 1). It is time consuming to get to knock sensor but before I try to change it with the hardness what do you suggest that I should look for? as I know sometimes other little things on cars may produce a code to come on but it doesn't come from the place the code is talking about. thanks for your help.
Hi, scotty, please I hope you can answer a question. I have a 2006 honda odyssey and changed coil packs, and plugs, and evap, but still running rough, they say it sounds like it could be either timing valve adjustment, or injectors, it still missing, and running rough. What do you think. I hope you get my message and can answer me soon. Thank you.
I had this issue in my mustang. Happened after I bought new "performance" coil packs and Bosch spark plugs. Had 3 of the 8 cylinders with this code. Went back to the stock coil packs and autolite spark plugs and never had this problem since.
I really like this man, Thanks for the video.
hi, i have a 2004 mazda 6s with a v6, I'm got a P0306 (misfire on 6) with a flashing check engine light. I shut the engine for 5 minutes and restarted it and it was fine. I checked all the electrical connecters too and re-sat the #6 coil and wires. I have been driving for a few days and its running fine. do you think the engine is fine and it was just a dud? i used marvel mystery oil for the last few fillips since September.
hey Scotty long time fan! first time comment. just bought a 2006 passat 2.0T with all kind of misfire codes. I will be replacing plugs tomorrow. my question is how many miles did that Audi have on it? I have 188k miles and am wondering about how long (estimated) the lifespan is typically on these motors.
Scotty im haveing exactly that. Multible missfire. Already changed the plugs. 2015 ford fusion. I am a mechanic but it doesnt hurt to get second opinion. Was checking videos and they recommend change 02 sensor. Have not done the leak check but my computer does show a code . So what do you think i should do first?
That's the breaks alright. Another Great Video :)