P0300_misfire-cylinder-1,2,3,4,6?

Question

I have a 2000 bmw 323i. Really good car but it started with a the misfire code p0300. My car has a lot of miles and I though it was time to do several maintaining . I checked the compression and alla cylinders are good.  Replace all spark plugs and coils the fuel andair filter.  Cleaned the intake and boot.  The Thule the butterfly.  Checked the egr valve the mass air flow sensor the fuel pressure. All of the things that I did help the performance of the car even the cleaning of the injectors but when I turn the engine on and give it like a minute it nooks one of the cylinder off.  And its not the same cylinder every time.  Any help is would appreciate it very much in checked the purge valve (breeder valve)

Answer 1

Misfire at different cylinder at a time ? What type of sparkplug went into the engine, check the sparkplug application.When the intake was cleaned out nothing on the PCV hose was interrupted, that system there will cause a misfire on different cylinders