1999 Mazda B3000 Q&A
1999 Mazda B3000 Question: Check Engine light on,p0306 code
I have a misfire on #6 code.Engine has slight miss at idle only,new plugs,wires,coilpack-thats the cheap stuff...Truck has 208k miles,but runs great.Trying to get state inspection to get Tags on it.Read here about it could be ECM?Any healp would be a Blessing-Thanks. - drdread
I would start by doing a compression test and leak down test. I would suspect you may have a #6 valve seat problem. Just a hunch based on the repairs you have already done, the track record of the 3.0L V6 in that vehicle, and your super high mileage. Do the compression test to rule out base engine / cylinder head before dropping any more cash on it. - DaveJHM
Heres the story, fuel pump and filter were changed a few months back and every since its been throwing the check engine light. We assumed it was because the seal didn't go on properly. well now tha...