P0300 0603 Engine Misfire Nissan Trouble OBDII Code Diagnosis Fix
 
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    P0300 0603 Engine Misfire Nissan Trouble OBDII Code Diagnosis Fix
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PostPosted: Thu Oct 05, 2006 9:22 am
  
nissantech

Joined: 22 Sep 2006
Posts: 50
Message: P0300 0603 Engine Misfire Nissan Trouble OBDII Code Diagnosi Reply with quote
P0300 is for Engine Cylinder Misfire

check EGR valve
check injector connectors
possible bad injector, check injector with a long screwdriver to hear the injectors click when the engine is running to make sure the injector is working.
Possible bad ignition coil. check this too.
check spark plugs, you may have a bad spark plug.
check fuel filter and fuel pressure. if pressure is bad, possible bad fuel pump.



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