Code Question..

It is possible the PIP is taking a poopey again. When it cuts out, it can generate a FP code.

For diagnostics, what I like to do is hose down inside the dizzy bowl with electrical contact cleaner. This can clean up the edges of the windows. If the pissy cold weather driving abates for a little bit, that can be a tell. This is highly unlikely to be a fix, but it takes 20 seconds to do.

I agree about your FP relay (inside the CCRM) being suspect, given all the codes. However, it might not be related to the missing issue (that issue is consistant with an engine management issue/sensory input rather than a relay IMHO). As soon as you warm up, you run strong. Relays tend to be more random.


I'd clear the codes and drive it until it burps on you; then pull codes again. Also if it happens to be missing while you do KOER codes, run a cylinder balance test to see if the miss is random of relegated to one cylinder. I'd also want to ohm out the ECT to see if it's calibrated.

Others will have different experiences and suggestions.

Good luck.

OT: I have no help for you, but I will bump the thread and welcome you back. Long time no see, friend.

Therian said:

OT: I have no help for you, but I will bump the thread and welcome you back. Long time no see, friend.

Click to expand...

Don't welcome him back. He may stay.

Anybody know if he ever figured out what was throwing the code 543?

Thanks,
JD