Well, for starters, I have a 96 80 with 186K on it. I recently had a check engine light thrown with a miss/hesitation, after scan it turned up two codes, a P0305 and a P0420. I started by hunting down the misfire on #5 and found the harness to the injectors resting reather hottly on the EGR supply pipe. I am pretty sure I remedied that ill, involving unwrapping the harness, and taping the gimpy insulated wires, and re-wrapping the harness with high temp header wrap as well as part of the EGR tube closest to the harness. It started up smoothly and idled well too. I took it out for a test drive and the miss came back, but it was a little different. It appears at partial throttle, but clears up at WOT. I got another code today, it is a P0133 (heated O2 sensor).
My question is, is this a common behavior for a P0133, or could it have something to do with a heated wiring harness? I have no idea how old the O2 sensors are, and I guess I should replace them. Has anyone else had this issue?
Matt
My question is, is this a common behavior for a P0133, or could it have something to do with a heated wiring harness? I have no idea how old the O2 sensors are, and I guess I should replace them. Has anyone else had this issue?
Matt