Diagnosing a Nissan Xterra misfire P0300

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Diagnosing a Nissan Xterra misfire P0300

Рет қаралды 11,050

Күн бұрын

This is the step by step of how I diagnose a misfiring Nissan P0300 that someone else has worked on and already replaced plugs and all 6 coils

Пікірлер: 15

@djbobbyd3985 Ай бұрын

Nice trouble shooting... great video.

@rippingburnouts Ай бұрын

Thanks for watching!

@raulhermida1006 7 ай бұрын

Great video, congrats.

@rippingburnouts 7 ай бұрын

Thanks for watching!

@venomx4093 12 күн бұрын

Charge your customers double or triple the gas price if you have to add gas.

@carlodonnell146 8 ай бұрын

I think that a cam sensor or crank sensor problem could cause a random misfire, because it wont be syncing right all the time.

@Chris.Lewis1456 9 ай бұрын

My frontier has the same issue p0300, changed coils, plugs, and i noticed cyl1 valves were wet with fuel. Has newer injectors also. With new cats. Im stumped. Runs better with cel on than when its reset to off. When its off its missing a lot. Light turns on and it runs better .

@rippingburnouts 9 ай бұрын

Not sure with out seeing it but sounds like an O2 sensor could be causing fuel trim problems and the cel being set could cause it to run in open loop and ignore the O2 but that's just a guess would have to see the data stream to know more hope that helps!

@oddtimekeeper Жыл бұрын

Great video. Thank you! You’re a good mechanic! You in Az by any chance? Lol subbed!

@rippingburnouts Жыл бұрын

Thanks for watching! No we are located in Iowa

@leodeboca Жыл бұрын

great job!

@Qghostz 6 ай бұрын

Please help 🙏 my Nissan 370z Nismo show P0300. I placed ignition coils, spark plugs, both pcv valves with oem parts. Clear the code but after driving around 80 miles the P0300 come back. Do you have any recommendation??

@rippingburnouts 6 ай бұрын

Can you feel the missfire or is it just setting the code? If the engine runs fine and you can't feel a miss it's possible that there is a crank relearn procedure. If the engine still has a random missfire there are several possibilities that you may need to look at like the catalytic converter may be restricted or a fuel delivery problem but I don't have enough information to give you a good answer.

@Qghostz 6 ай бұрын

@@rippingburnouts thank you very much for responding. The engine is running fine, only feel vibration from the engine and the engine seem very bad on gas mileage

@rippingburnouts 6 ай бұрын

I would look at fuel trim data to see if anything jumps out but if you are not felling the miss I would lean towards restricted exhaust like a plugged cat or a fuel delivery problem but I'm not sure without knowing what some of the sensors like o2 and maf are reading. Side note you could try some fuel injector cleaner and see if that helps dirty injectors can cause bad gas mileage and sometimes random missfires @@Qghostz