The Haynes manual says it is ODBII. The diagnostic connector is definitely OBDII type. But my scanner (Sony Clie with OBDII interface from Harrison R&D (Houston)) does not scan the PCM (works fine on ort her cars 1996 and up). Nor does the Actron scanner at Autozone scan it.
That's one issue.
The main issue is that the car will unexpectedly chuggle and quit, usually when pulling up to a stop. Then it starts right back up. This happened a couple of times a day and never left a PCM code. Finally two days ago if set a code:
13 - MAP sensor voltage slow or no change from idle to run.Ha hah, I thought I had found the problem, but no.
That code cleared on the next start up.
Then last night another start (cold), chuggle, stall with codes:
44 - battery temp sensor voltage, and 22- engine coolant temp sensor voltage too low or highIs it plausible that there might be a wiring harness problem that logically ties all these things together? or is the PCM going bonkers?
Any ideas?
TIA Bill