P0300...How I fixed My code....P0300. Simple steps!
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- Äas pĆidĂĄn 26. 08. 2024
- PO300...How I fixed My code....PO300. Simple steps! -Most of the time I have found out this code is more sensor, bad wiring and connections issues ....not plugs, wires, fuel, emissions and timing like people often tell you.
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I hope I explained this PO300 trouble well enough for everyone. Bottom
line my experience with code, seems to always be a broken/bad
connection, bad sensors. ------Here is an Example and this one is a bit
easier to figure out... .....(PO300 AND SAY A....PO304, tells you where
to look) Cyl #4.
TVWXMAN32 5 I want
If its a bad sensor you should get a code for it,just checking.
Nathan Rohrbough .
Nathan Rohrbough you did an awesome job! Currently trying to figure out the same issue on my â07 Camry
Nathan Rohrbough now mine also threw a P0305 code so I know to look at cylinder 5. About 2 months ago I had changed all spark plugs and coil packs and the car ran great (check engine light never went off though). Now just recently the car started running pretty bad and idling hard and the check engine light started flashing (and thatâs when I got a P0300 and P0305).
P0300 in fact CAN be tripped by an EVAP Emissions LARGE leak code GM P0455. I dealt with it Twice in the last two months.
Awesome procedure and video Nathan. You got a new subscriber!
Yes so true! Thanks for sharing!~
So was a new gas cap the solution??
I also have P0455 ⊠my car did vibrate and idle rough ⊠drove home and turned the engine off and restarted the engine and car ran fine again but has Permanent codes P0455 & P0441
The biggest cause of a P0300 is the battery. Every inspection should start with testing the battery, then go from there. To set a P0300 code it has to be something the computer directly controls, like the coils and injectors. It will not set a P0300 from carbon build up, sludge, worn or bent valves, worn rings or a hole in your piston.
Good point! Thanks for sharing!
Hey I Have a p0300 code p0301 0302 0303 0304 all cylinders misfire and then each cylinder on my 2012 vw cc also epc and battery light is on ! I changed the plugs, and coils and replaced the battery because it was dead. It still wonât start, it tries to turn over but canât. What do you suppose it could be ? I donât want to keep throwing parts at it but Iâm stumped!
@@youtubebitchcenter1463 hello, did you find a solution ? Iâm try the process of elimination, Iâve been changing sensors, cleaning parts & changing parts associated with sensors⊠any suggestions would be appreciated. I have a 2008 Jeep Grand Cherokee Laredo 3.7. Please and thank you.
@@youtubebitchcenter1463check fuel pump or injectors
@@youtubebitchcenter1463same with mine on my MK4 Golf gti vr6 .
Great tutorial....!!! I have de same situation in my Neon... I did basically everything you did, which means, I wasn't so wrong, so next will be camshaft, and crankshaft or wires related, since I had also a P0499. Thanks so much for sharing your experience...!!!
I believe on the fuel pump there is a check valve . When you put your pressure gauge on to test , it should hold pressure after the key is off for a certain time period . If it drops too quickly , the check valve is bad . On a volume test , if your pressure gauge has a dump valve , with the car running , I believe about 16 ounces should come out in 30 seconds . That is a ballpark number . A clogged fuel filter or bad pump may slow it down .
Ounces? Who's using these old timey measurements? Fax me the answer.
â@@sniddles đ
I'm saying if you have a real loose timing chain or loose belt...it only takes 0.5 degrees for the cam and crank to detect a difference between the two of them. They may spin at the same timing marks, but the slack will noted in the sensors if slack or a different point of reference is seen in the cam and crank sensors. Even if one sensor starts to fail...it see's this as one of the two (crank or cam) are not in time, or thinks there not spinning the same time....then gives a code. In a nut shell.
Love the way you break things down . Salute to you.
Hey I think you did a very good job explaining everything thing because it all makes a lot of sense I have that po 300 code and a 301 on my 04 mustang GT automatic dark shadow gray and I have been buying new sensors and new injectors and coils and the code comes right back so I am going to replace all the connectors on the fuel and coils and see if that helps
Nice!!
Ever get it fixed ?
..That was a Very Good and Informative video Nathan!! You explained and Demonstrated it well. Good Job Sir...!!
Thanks...although the audio was strange...Not sure why it sounds so muffled.
Such a great video. The biggest question for me is why did your computer not show a Cam sensor code, PO340?
I have the PO300 code on my 2005 Dodge Durango v8 4.7L. I haven't check out any electrical, but will definitely do that. You've help me narrow down on what the Durango needs. Thank you! I'll check out the electrical and give you an update.
Do what did it end up being I have the same Durango
I'm in the P0300 boat too.
My wife drives a 2016 Nissan Rogue. It has very few miles on it - 4,400. All the sudden she took it out the other day and she said it was shaking. When I took it for a ride it was misfiring badly and I got codes P0301 P0300 P0219a.
Since the P0301 is cylinder 1 misfire I first swapped the coils of 1 & 2 cylinders. Same P0301 and bad misfire. Then I swapped 1 & 2 plugs and the misfire code went to cylinder 2. Thought I solved it with a plug replacement but day later got rough idle and check engine light again but now P0303 P0300. So, I change all the plugs. Still rough idle and check engine light with P0300 code.
Looking closer at the removed plugs they showed some carbon and fuel progressed up the threads - this was on all cylinders.
Messing with my code scanner I found a monitoring function that shows how many detected misfires in each cylinder. Letting the car idle cylinders 1 & 2 show zero but cylinders 3 & 4 have progressively growing number of misfires. Just to do something I swapped the 1 & 3 coils and the 2 & 4 coils but no change.
The car is running much better than when it had the first problem but still rough at idle and misfires sometimes at low loads. Seems better under load.
Any suggestions on what to try next welcome.
Thanks - Mike
Wow thank you for your time on this video i also have a p0300 now i can try to trace it down.
Is always like that. It's the last thing you check to be the Prb lol atleast you fixed it. I have along ways to go. Thx for video
It amazes me that so many people stumble upon their wiring issues. They would have to, since finding it otherwise would be impossible. This happens over and over again. Just by chance they find the issue. It is crazy. I feel sorry those that never find the issue, and keep throwing parts at it.
This is me, I haven't stumbled apon the solution yet to my p0300
It's due for replacement, just go ahead and replace it. Yes, wiring issue needs to be looked at. But basic troubleshooting is in order.
2015 Lexus gs350 f sport . Po300 comes and goes. Intermittent. Also po13a. Replaced OEM denso plugs.
Inspected ignition coils and wiring.
Most people even mechanics, throw parts. Unless someone else you know has the same car and you can swap parts that way.
What if I just got my spark plugs changed
Great video, very informative. Thanks for helping me diagnose my car.
I have a 2011 Chevy Cruze with code p0301 cylinder #1. It has 127,000 miles. I've changed the spark plugs, ignition coil. It's all 4 together in one block. And cleaned the fuel injectors with carb cleaner. And checked the fuses/ current at the electrical connection. I've ran out of ideas. I'll be taking it to the dealer next week. I would like to get some more info regarding this. If I can do this myself and save some money would be awesome if not, oh well I tried. Thanks!
Do a fuel pressure test! Any fuel pressure drop while engine is off will give you this code.
Hi, thanks for the useful information. If we are talking about sensors, then there are two errors p0300 plus p0102 (MAF). Is this somehow related?
chevy express vortex 6.0. persistent steady p 0300 only at high load / 60 mph plus on highways. did all plugs, wires, tuneup then ecu and ground cleans, put in new crank pos sensor , and new cam pos sensor. still giving p0300 . found lots of corrosion on tone ring area of CK case pos sensor. cleaning off corrosion cured the p0300.
Hi there , i guess hard start ups for example could be a problem with the Fuel Pump
if not the gas filter , obviously after having eliminating the other causes , such as Compression
test , Coils , Sparks , Fuel pressure reading is related of course to the Fuel pump , and
checking other sensors as well ... right ?!
Right...But if you are loosing fuel pressure (just because of a rusty line like I was) on start up...it will do it.
I checked for spark with a screwdriver and it shocked the hell outta me.
Hey you donât got the video??đđ
Thats old school way
Kmow we got the spark tester
Lmfaooooooooo
lmaooo well now you now it has spark đ
đđđđ
Well explained sir. Thanks a lot. Dealing with P0300 right now and I'm not as familiar with cars as you are. Tough situation. I've decided to replace the plugs and ignition coil for now.
By changing the spark plugs and ignition coils, Did that fix the problem?
@@NuMBERNYC did you figure out your problem?
Hmrms i have a p0300 on it. Engine was just rebuilt less than 100 miles on it. I know the engine was in time I set it myself. Compression is good, Timing belt is still tight like its supposed to be. Fuel filter and fuel pressure regulator are brand new as well. Never had a misfire issue till I change spark plugs and wires to get the engine ready to be tuned on a dyno. Crank and cam sensors are new as well.
O my!
@@FixingWithPassion Litterally poped a p0300 code on the first drive on the new spark plugs and wires. AFR"s went about 13.2:1 after running the engine up to about 4k rpms its still in break in period. Turned into my place of work go to park and it just shuts off. Tried to start it and you get a bad hard start. Engine wont idle without a little throttle. Mind you its a static idle engine no iac as its a built engine. 90mm tb, 272 cams, 13:1 compression. Engine ran about 100 miles with no issue. Change the plugs and like 30 seconds after a 4k rpm pull develops a misfire and well rest is history. When i did the TSing i had .038 spark plug gaps when spec is .032 they were iridium plugs which is why i didnt gap them lol. Up to that point engine was not having an issue running. Problem developed on the last 30 seconds of the drive to work lol. Thinking its cheaper oem style plug wires and spark plug gaps too wide for a high compression engine. So bought some msd wires and gappable plugs so set them at .032 gap. Sorry for the wall of text lol.
@@az_3kgt714Iâm having the same issue, changes plugs now Iâm getting a p0300, engine is shaky on idle and stuttering.. I pulled plugs out and bought OEM, all gapped to 0.42, still same problem, it didnât have thus problem before I changed plugs. Just ordered all new coils, the boots didnât feel like they seated right, Iâm puzzled 05 trailblazer
@@wiillthebarbertv9415 in my situation it was bad spark plug wires. Put some 10.2mm msd wires on it instead of an oem replacement and it cleared right up.
@@az_3kgt714 about to replace all coils today and see if that helps
Gr8 video! Clear and neat đ I just got my FIXD ( a code reader) thank you đđŒ
My FIXD code reader worked 3 days then stopped.
Check cigarette lighter fuse
How about a p0300 + p2097 code combo . I replaced both O2 sensors and cat converter
You can use a timing light to test for spark. đ
Wow, can i just tell you that you know your shit!!
The way you explained it was perfect. I've been dealing with a few weird issues in my 6mt 2003 350z. Once in a while i'll see a P0300 code stored but I would just clear it and it won't return for a few weeks, then back again. The moment you mentioned that the P0300 is misleading and is actually getting triggered by camshaft and crankshaft sensor values, it all made sense. My car is notorious for chewing through cam sensors and that one statement you made verified it in an instant. My other symptoms were slightly rough idle, and after a cold start with a minute or so warming up from a stop to crawling and driving if I hold the clutch a little too long at the bite point its starts jerking till it catches gear and gains speed. Never have this issue when fully warmed up driving throughout the day. Cam sensors work with oil, so temps matter which further proves my point that the culprit is cam sensors since the oil is cold and electrical signals are weaker, thus my jerking. Thanks a lot for giving info that would've taken me longer to find on the internet!
based on this video I replaced my cam sensor for $20. and so far no check engine light after 3 days!!! It says cam sensor is supposed to last about 60000 miles only, and mine was 139k.
Nice!!
I got a 2005 nissan murano and the check light was on with code PO300 and the problem that I have was the Intech gasket. that fix my problem.
Nice!
You say if you have a cylinder code, then it is easier, but I have had in my 20 years not the cast ,just had one where it was the fuel, delivery ,cam timming,and timing problems , so you should say best case start there.
True.... I must of had a brain fart ;( But your right. I'll take a cylinder code any day over most codes.
I Start to use chevron gas 93 and fix my problem
good video but my experience more so than not a random misfire on all cylinders is caused by too much are entering the system usually a vacuum leak or a bad mass air flow sensor
Great vid man !! For me was a damn MDS lifter lock !!!! Internal
2005 Chevy Colorado PO300 the engine was running rough on level ground I parked it in my up hill driveway ran smooth I figured maybe something in the fuel I put a bottle of injector cleaner & bottle of heet (water eliminator) was running a little bit rough not as bad as before, waited 24 hours pulled the coils, plugs, looked them over, checked for leaks no red flags. erased the codes went for a 6 mile drive in stop & go traffic still no codes will drive it tomorrow 12 mile round trip to work to see it drives the same.
I have the same truck and code. Did u figure it out?
great vid!!! most detailed video i found most yet on a p0300. i got a 06 cobolt and engine lite came on, reader p0300., should i do plugz and wires?, it has 9500 miles on it!??
Good start
Best auto video so far. Bravo! Very informative đ
Great detective work on this video TY!
Cool!
great vid & info. Our van has a rough idle last week or so & pops thru the intake under load. no check engine light so I'm not sure if its fuel pump or injector. 170.000 miles
Jason Voorhees you ever found out what it was sound silmiar to what I have
@@xxgodxx9306 I've been working long hours , so haven't had a chance to look at it yet, but will let you know. There is a video ' Kia Sedona - Rough Idle ' where in the description the guy bought all kinds of parts none of them resolved the problem & he didn't update what the issue was, but it helped because I can basically rule out those as being the cause. I'm thinking may be clogged EGR valve or intake gasket leak. There is a vid on how to check for vacuum leaks with a cigar. you may want to try that. also, sometimes if it jumps time it will backfire, but it will do it a lot, not just occasionally.
I had P0300 on a Buick with a 3800 series 2 and I had low compression on cylinder number 2 and 4 back in 2016
O no!
Most of the steps you did were not related to a PO300. If it was a plug ,coil, wire, or compression you would have a fault for the number cylinder ie PO 302 etc. You need to look for something common to all cylinders. Also most of the time the PO300 code the engine runs fine sometimes. If you had a bad fuel pump and or fuel filter it wouldnât run good period. So whatâs left? Cam position sensor and crankshaft position sensor effect all cylinders.
True, but if there is a issue with s plug, wire, or compression its good to resolve that first. If there is actually a miss, bad coil, low compression its not going to help anything. Just verify that stuff, Then move on to electrical codes etc like you said. Never stop learning! Thanks for watching!
I currently have a P0300 only with check engine light. Heavy misfiring. That's it. This is a 150,000 mile C5 corvette.
Changed plugs and wires about 50k miles ago (roughly 7yrs ago). Car starts when cold no problem, however, P0300 and check engine comes on along with heavy misfires after about 20 seconds as RPM decreases to idle. Belts are good. Battery good. Air filter good. Cleaned MAF.
Any help?
@@nazareta6541Hi, did you fix your problem? What was causing an issue?
@@foxie777 mine was one of the engine valve springs, it was literally snapped in half according to the dealer diagnosis. Dealer fixed it for about $400 I think.
Good trouble shooting good explanation help a lot
Great video. Thank you
What if I see a little oil next to the coil pack when I pull it out?? Iâm having the same issue, thanks for the vid man
It could be bad rings or leaking valve cover gasket.
awesome help video.thank you very much.very informative
Thanks!
Have a 2010 3.8 caravan reading po300 also has the smell of fuel in idle not sure if to much unburnt fuel getting in or a clogged injector
Let us know if you fix it.
Could be bad or leaking fuel pressure regulator
Good job ! Thanks for the info ! đđ»
Should have checked for spark right at the plug by pulling the plug and hooking it up to the plug wire and sitting the plug on a grounded location. The plug wires might have had spark, but that doesn't mean the plugs do. I have seen that problem many times especially with Champion plugs like you have in that engine.
Thanks for the video. I have a 2005 gmc sierra 1500 6cyl I have a check engine light on and it flashes at about 60mph also p0300 code. Truck runs smooth
Might need a crank relearn
My 96 chevy Silverado has had a random misfire forever. Iv changed every single part in the entire vehicle some more than once & paid 2diffrent shops over $1200 & it still broke. Sometimes even worse than it was to start. But never ever fixed.
Same on my truck. P0300 @ 60 mph but no change in performance. Changed the fuel pump plugs wires no luck yet
It cold be your intake i had the same code on a 09 jeep and it was the intake
Right!
Thank you for your video and your time god bless u..
Night
Thanks for the video,very instructional
I had a po300 code on a 6.0 Silverado, 2003, 2500 it ended up being the solenoid was shorting out to the block. It took awhile to figure that one out.
O my!!
The thing about the solenoid shorting out to the block was that it melted the crankshaft position sensor in the block ,which was next to the starter, so I thought it was the sensor causing my problem. A year earlier the starter had been under water but rain and big puddles must get into starter and solenoid here and there , luckily I figured it out without throwing to many -arts at it.
Well I changed my spark plugs but still no luck but now Iâm getting a new error about Traction and Stablink not working now. Ugh. Iâm biting the bullet and having it towed to a shop.
Finally someone that actually explains things and the right way.! Thank you! Hey so I have a 1998 Chevy astro van that runs bad. There's a electrical ticking when it misfires. Driving down the road it runs perfect but then randomly misfires and then doesn't at all. I figured it was a bad spark plug wire since every time it m isfires so I started it and pulled one by one spark plugs and made no difference at all the tick was still there. Do you think or can a fuel injector make that noise if it's going bad ? Problem seems to be getting worse as well now and I have very bad fuel economy now please he BCK to me Thank you:)
Any check engine lights?
TVWXMAN32 yes has been on for years I just got this from my wife's father. Was 7 different codes and I cleared them started running perfect then once gets hot does everything I explained now will do it at cold start the two codes the ecm is saying for the last 3 days is po300 and p0304 witch obviously theres something going on with 4th piston chamber. No compression check cause I no th block is fine do to it running perfect on and off. ......long block 4.3 litter v6 vortec intake. But ya everytime it starts to misfire...witch is at ...always stop signs and starting out all of a sudden it stops that little tick noise then runs like its normal self then like a switch stops running good loose hores power and the whole thing shakes them again is fine. It's obviously what is making the ticking noise but I can't figure it out . So I guess fuel injector on 4 but not sure. Basically before I get into this I live in this van for the next 3 months so hard to work on. Is it a known thing that fuel injectors make that tick tick noise louder if they at bad ? Or do you think I have something else. ?
Ticking lifters are not a bad thing just annoying to here. Probably no whats causing the miss fire. I start looking at the fuel pressure first. See if it looses any fuel pressure when you shut it off. My neon gave me a po300 and found out it was a loss of fuel pressure.
@@rileypearson3236 I am having this exact same problem you are facing. I have replaced coils and plugs. checked wiring. it would be great if you can guide me thru this problem and how you have fixed it 4 yrs ago. i ll be grateful. millions of thanks in advance
Extremely useful info!!! Big thanks
Mine was the ignition coils and spark plugs
Mine tho
Great video , thank you ! I have a Dodge ram 1500 4.7 and i have a PO307 MISFIRE so far ive changed MAP, SENCER, SPARK PLUGS , FUEL INJECTOR , AND COIL but its still there . any suggestions
Compression Check
I thought it was a good thing to check the gap on the plugs make sure they are gapped right!
yea
My Mazda Protege 2001, great car, began stalling at idle with warm engine, light finally came on, mechanic got code PO300. Original plugs and wires replaced and showed normal wear. At the next driving, car started great, but there was a huge smell of gas in the garage. Then car stalled (at running temperature) and died at low speed, would then crank but not start. Towed to garage. Since it starts great and runs great at cold temp, mechanic canât get the problem to surface even after driving it around his lot. Neither one of us wants to drive it because we know it will die on us. He says he canât work on it because the problem is not evident. Seems, after watching this, he could be checking a lot of things because with a code of PO300, there could be a lot of things causing it and the engine does run when cold to perform these diagnostics. I'm wondering if it has to be checked right after stalling? Trying to avoid the dealer ($135/hr). Wish I worked on cars.
I got po300 code on my car make hissing and popping when i take off some times when i idle its 2007 g35 3.5L coupe any suggestions
Valve cover gasket or air intake gasket? Maybe lol
Great job man what a way to do an explain what to do next.
Thank you sr.
I removed my egr valve and cleaned it although it was relativley clean, i changed my cam shaft senser but still no change so im gonna replace my coil next, the p0300 code is a pain on the ass.
Check your fuel pressure. I had the same Issue. It should not be loosing any fuel pressure when the motor is not running.
@@FixingWithPassion if it loses fuel pressure after shutoff it is most likely a bad check valve in your fuel pump(hopefully this, it doesn't need immediate fixing as its just a startup commodity) or a leaky injector which must be replaced immediately or you will have a visible leak in a line somewhere maybe a o ring whr lines go into injection.
Hello this is the 3rd time Iâve gotten p0300 code on my 1999 5.7 Tahoe. I noticed it sometimes starts a bit sluggish. I replaced spark plugs and wires along with coil and ignition module but hasnât fixed the problem. The code appears when driving at 40 mph. Any leads on what it could be?
I have 2017 Kia Sportage I changed all wires and plugs still misfire 1 &2 what else should I do
Check air leak and ignition coil pack most of the time ignition coil pack are going bad
Three months ago I had transmission lurching, engine overheating, and CEL on load only. Radiator guy said I needed a new radiator; trans guy - trans work. Checked coil packs, plugs & wires. It was # 2 ignition wire. New set of Delphi wires - $29. All problems ceased. Scotty Kilmer saved me tons of money - AGAIN!
that guy
Good good video I thought I saw 300m mirrors. Gonna watch it several times. Will compression test replace gaskets in valve cover LH body style 2.7L .
I've replaced plugs cylinder plug tubes. Maf sensor etc. Still trying to track it down.
What year and model is your Neon?
muy bueno amigo.đź
Nathan I need your opinion, I have a 2005 E36 6 cylinder Altima and it was getting P0300 so I caught a special on the spark plugs and coil packs and just went ahead and bought them. I changed the plugs and no difference other than a p0303 popped also so we know where to look. So I pulled the coil pack and closer inspection showed a hole burnt thru. So I changed all 6 coil packs as well. While I was in there I replaced the two sensors just to be thorough and it has been a while since anything other than oil change had been done. I cleared the codes and the car was running very good and no codes came back. The next day I start the car and starts hard, then test drive was very sluggish like starting in 2nd gear or something. Went back and checked and it had a new code pending whatever that means... an almost code I guess? P0171 bank one too lean. Quit for the day and came back the car won't start... turns over great but no fire. I went back to the sensor and noticed a problem with the sensor connector wire. Did not have one but pulled sensor, it was fine and put it back in then plugged in the connector and wire and tie wrapped it so it could not come loose. I ordered the connector and wire. Car starts right up and runs like a race car again. Get back from test drive and all is good, come back later and starts hard and runs sluggish again??? Like starting in second gear ? I cleared the codes and it is not posting any new codes, and one time it starts and runs great next time very sluggish? Several days later and still no codes but same issue? Any ideas what the heck is going on? Help! :)
I have somewhat similar problems so I want to know...
did you figure out the problem ??
very helpful!
Ever better tool now days.
My 2011 Nissan 370z Nismo still show P0300 even though Iâve already spent $2,000. I replaced all parts with OEM like Spark plugs, Ignition coils, PCV valves, crankshaft sensors, air filters, oil changed, and evaporation purge valve. Whatâs else should I replace to make engine light go away?? PLEASE HELP đ
Nice little intro' - thanks & keep motorin'!
I have a po300 code dodge grand caravan.Van won't start plugs and sparks ok.It started once when i hold the gas pedal down.Was running ok.Shuts it off never starts again.Any ideas?
what if i get a P0300, and a P0301, P0302, P0303, P0304 but my engine runs fine? is that just a vacuum leak in the intake somehow? almost like a bad/dirty FITV?
Add them all up and you got a sinking ship!
HI, I GET a P0300 on a diesel land rover range sport . fuel injectors were changed , turbo throttle body was changed left and right. road test was done nothing comes up good strength , runs fine.. go back to the computer run it back the scanner and comes back the same code with the check engine ... what else could it be
Hey so i got a Acura tl v6 and iâm having a problem where my car turns on but shuts off as soon as turned on but if i give it gas it stays on and the codes are p300-306
Very well explainedâŠ
Iâve got a 2000 vr6 and Iâm having a P0300 code show up. I was told by another shop that the fuel injectors need to be changed. Also checked the gasket and itâs leaking so I put some sealant in it helped but now itâs back to square one. Not sure what to do next.
Check fuel pressure.
@@FixingWithPassion now those codes arenât showing any longer but a P0134 (no activity b1s1) đ€·đ»
I HAVE THE SAME PROBLEM. AND IN MY CASE WAS THE CKP SENSOR THAT HAVE A SHORT
Bad alternator can cause this, when turning on big electric users as A/C, alternator can not provide enough electricity for ignition coils so random misfire happens
Excellent video. Well explained
Cool!~
p0300 only w/ cold engine- miss. when warm runs great. What could it be?
Borescope the cylinders for a leaky head gasket.
Where is EGR located on porsh cayenne v8 2008 model
left of the egr
Great video! On a side note, what did you use to record the video?
If not a blue spark đ need a coil yellow bad đ
I watched a video that was a year old finding po 300 the guy used a TopDon obdcan plus scan tool...it showed which cycl was misfiring and how many times..i think it even did live data...they are under $50...i think scanners for the dyi guys are getting better all the time and less expensive... currently i use a cheap app that gives codes...
Good to know! Thanks!
My 99 GMC Sierra gets a p0300 when it doesnât want to start. Thatâs when I go scrape the battery posts with a wire brush to get the build up corrosion off. Then it starts and never has a code again until 6 months later when it corrodes again and wonât start. I hope itâs actually solving it and not just clearing the memory when I undo the posts
Yea might be.
Trying to take out a coil from an 8 cylinder is awful. These little cars are so easy but when you have a Ford F-150 V8 4.6 I guess you gotta work with it.
2011 Jeep Grand Cherokee 5.7 giving is constantly flashing lights & giving me codes. I've replaced several sensors with the latest being the camshaft position sensor. Now I'm getting codes PO330 knock sensor 2 circuit & PO335 camshaft position sensor circuit. My check engine light flashes, it doesn't accelerate well, loses power, stalls, sometimes runs rough & traction control light comes & goes. Feels like my vehicle is haunted! I'm beginning to wonder if I have a bad PCM. Anyone else have similar issues?
Well done helped a lot
Heck Yea!~
I have a 2005 chevy tahoe and I had the fuel pressure tested and its good, I replaced all 8 plugs and wires and I replaced upstream o2 sensors. I still have p0300 and its hesitating on idle and when im pressing the brake light at stops. Any help or tips would be greatly appreciated.
Brake booster....
You really helped me so when I go to my mechanic, I will know exactly what he is talking about. Could it possibly be a faulty gas cap to give you a PO 300 code?
I swapped my gas cap with an after market one( lock and key ) shortly after P0300 popped up so now I'm putting the original gas cap back on and clearing the code hoping everything will be fine. Wish me luck!
Hey I have a honda element with p0300 p0301 p0302 p0303 p0303 I've change all plugs, coil pack, I took the fuel filter drain the gas tank put new gas in but I did found a cigarette but inside the tank but the fuel pump work and when I replace the gas and install back the pump I didn't connect the fuel line and I turn the key in the on position to prime the fuel pump and it did pushed out some dirty black gas after that I ran it a few time and its putting out clean gas what could be my next step tnks
Hello, Nathan. I have a 2004 Nissan Frontier XE with the 3.3 liter V6 engine. I am having the P0300 DTC . The engine will run, however it is rough idling. Also, the exhaust is light in color and smells like gas (running rich). Got any ideas for me? Oh, BTW, it also has a P0158 code that has to do with an O2 sensor, but I'm not sure if that has anything to do with my P0300 issue. Thanks...Dan
Check fuel pressure while engine is off. Should not drop any.
I have a P0300, P0302 and P0303 misfire. I took it to a mechanic and he stated that it is my catalytic converter. Can it be something else or is it my catalytic converter?
Hello Nathan. I have a 2003 Oldsmobile bravada. I have 2 codes P0300 and P0113
Which is intake air temp sensor.
Would a bad intake air temp sensor cause a P0300 random? Thank you
đ€Think this way :The intake air is for THE ENTIRE ENGINE=ALL CYLINDERS ...so of course it can trigger a P0300 code..đ
@@carlosmejia5728 thank you for responding. It turned out one of the connector wires was cracked. So I replaced the sensor and it cleared the code.
NOW I still have P0300. After replacing all coil packs and checking the fuel delivery I'm stumped. It runs rough.
Any suggestions? Thank you
Darn that was simpleđ¶đ” I officially got a headache I should have stuck with probably bad coil.
You chose an extremely easy car for your demonstration, everything is handy !
I get lucky sometimes.
I do not keep cranking until I get max compression, I look at the first good compression stroke and the 5th stroke and compare all cylinders. a weak cylinder can build up to max after enough cranks, not a good procedure. A running engine will act differently. When I say first good, you may already be on a compression stroke and get half a pump so do it again. Also be aware of a weak battery and as you work your way around the cylinders they may be lower and lower based on weak battery. So of course I need to be able to see my compression gauge while I am cranking from the key to see the first and fifth strokes. DONT TRUST scanner codes, it is only a guide, prove out your problem by testing. The older the car, the less smart the computer is, its simply a fact of life.