Quote:
Originally Posted by -=Jeff=-
start with lower code # first, then move to the next
make sure the PROM is fully seated in the ECM.. have the battery disconnected to clear codes.. then try again, if 55 reappears it could be a bad burn or checksum in the PROM and might need to be re-burned
I have had that happen numerous times, with the PROm for the car and with stuff at work.. it happens
once 55 is fixed, then see if the others return
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K, I tried reseating the PROM. Seemed to go a little further in the socket and snapped in solidly. We'll see if that fixes the issues.