My 2001 xterra has been throwing a random misfire code acompanied by an intermitent hessitation between 2000-300rpm and I can't figure it out. I recently installed new head gaskets (had an external coolant leak) and a timing belt. thought I left a connector loose or maybee a ground wire but over the last couple weeks I have gone over everything with a fine toothed comb (replaced all ground straps and checked wiring). I checked the intake tube for cracks, reset the timing, ajusted the throttle position switch to spec, did an injector/intake cleaning. I did a full tune up in July of '09 (cap,rotor,plugs wires, fuel and air filters) and checked the plug gaps before reinstalling them after the head job. Was thinking it may be time for another tune up, or a possible injector issue, but that would set a specific cylinder misfire??? Could it be a distributor that is "dying" (this distributor has the cam pick up and coil built in) or a sticking EGR or crank possition sensor ??? Any help would be great, thanks.
I would suspect your distributor is faulty. It isn't too hard to remove it and inspect for wear. Set the engine at TDC, then unbolt and remove distributor. Remove cap and check for bearings and/or metallic debris inside of distributor. If so, it is toast. Even if you don't see any metal particles inside, check that the distributor rotates freely by hand. If not, you will need to replace the distributor assembly soon.
Nissan xterra codigo p0300 random misfire cual es el problema que devo de hacer para areglarlo
Distributor needs replaced
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Random/Multiple Cylinder Misfire Detected have a good day !!
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Distributor has coil and camshaft sensor in it. I changed it.no more problems
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