- August 18, 2017 at 6:49 pm #16047
JOHN D STOWE
I HAVE CHANGED OUT THE FUEL INJECTOR, COIL, SPARK PLUG WIRE AND SPARK PLUG. STILL GETTING CODE P0306 ND STILL RUNNING ROUGH. WHAT IS WRONG?
- August 25, 2017 at 5:43 pm #16055
It would help if we knew what make, model, year and engine size. After replacing these parts, the next thing to do is check compression of that cylinder.
- August 29, 2017 at 10:53 pm #16068
If the misfire is mostly at idle, check for the intake gasket leaking vacuum. Also check compression on #6.