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I have a 350z 6MT and it is currently throwing a P0300 (Random/Multiple Misfire). I did many things and I cant seem to find the problem. It was recently engine swapped because the old one spun a bearing at 140k. I swapped a G35 ( VQ35DE ) engine in and it was missing. I changed the plugs, the coilpacks, crankshaft position sensor, camshaft position sensor ( driver and passenger side ), changed fuel rail and injectors, changed ignition coil sub harness. I have no idea what to do. Any advice?
Are your injectors leaking?
Are the plugs properly tapped?
Was everything installed correctly?
Was the motor damaged before you got it?
Have you been racing it?
Are there mods on the car?
Have you done a vaccume leak test?
No injectors are good, yes plugs are good, everything was installed correctly, no motor wasnt damaged and did a compression test it was all good aswell. And yes did a vacuum leak test. Im thinking maybe a wiring issue im hoping not
Yeah, hate to agree with you but I do..... you're the only person I know that owns a V9 Nissan engine. (Or maybe it's a V10 and I just can't see the label on the opposite side.)
thank you my man i appreciate that picture but im almost sure i have them correctly plugged but i will check. Im starting to think its going to come down to a grounding issue.
thanks for all advice. I have not yet got to work on my car due to snowy freezing weather which is effecting me because i also have a fan issue so its hard to ru up the car because it is too loud and too cold. I would appreciate if you guys have more details on grounding wires. The FSM doesnt give too much about them and it is kind of difficult to find them all especially the ones related to my issue.
I would appreciate if you guys have more details on grounding wires. The FSM doesnt give too much about them and it is kind of difficult to find them all especially the ones related to my issue.
I don't know what you're talking about. Section PG of the FSM has all the info on ground points you could ever need.
Hey fellas, i worked on her yesterday and the first thing i checked was the plugs ( #4 and #6 ) and of course they were swapped!! So angry at myself for not doing this first and not checking this before i did all those other things but atrleast now I know my car is in fantastic shape. It has stopped throwing the code and it is running like a beauty. Thank you for all your advice !!! Drift safe my fellow Z members
01-11-2018, 04:51 PM
350z Misfire! Nothings working.
Solved !
