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1999 V8 Code Soup.


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Got a 1999 D2 V8 here that is throwing a lot of codes. From these can anyone offer a 'root cause' that should be addressed first?

P1590 - Rough Road

P1668 - Anti Theft

P0705 - Transmission Range Unit

P0174 - System too lean

P0171 - System too lean

P0141 - O2 Sensor Heater Unit

P0161 - O2 Sensor Heater Unit

I suspect the 017s are older. The current symptoms, it went from no-run (but cranked) now to no-crank at all. It is also in Neutral but the lamp for 2nd is illuminated and the shift is locked. The ignition key also will not come out of the ignition. The remote key is unavailable as well.

I have a second D2 here to pull parts from but need to get it running today so any ideas would be appreciated. The weather out there is miserable or I'd just start guessing but it is raining wet sleet and I can't get it moved for obvious reasons.


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