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subaru 10/6/2017

2007 Subaru B9 Tribeca Base 6 Cyl 3.00L


misfire cycylinder 6 over and over again

I have a 07 subaru tribeca check engine light no traction and cruise control lights are on scanned it and it said misfire cylinder 6 so we changed all spark plugs all coil parks and cylinder 6 fuel injector....ran fine for 3 days and started it up this morning and it started acting like its misfiring again and all lights came back on scanned it again and it said misfire cylinder 6 again.....can u please help and have triex everything.

1 Answer


Jimm 10/7/2017

A code P0306 may mean that one or more of the following has happened:

Faulty spark plug or wire
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector
Burned exhaust valve
Faulty catalytic converter(s)
Running out of fuel
Poor compression
Defective computer


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