Didn't want to resurrect my old thread
, so I'll start this one....
Quick recap: Got into an accident with my 93 SE, got a 94 SE good body/bad trans. Wanted to transfer good engine/trans from 93 to the 94.
Despite the differences between the 93 and 94, we already had the 93 engine pulled, and changing over a few things wouldn't be a big problem.
Things we changed:
Whole wiring harness from 94 onto the 93 engine.
EGR from 94 onto 93 engine.
AC Pres. Sensor from 94 onto 93.
We didn't change over the valvebody since all connections to the trans were the same.
We got the 93 engine/trans in and running.
Now the problem is the alternator is not charging, PCM is not signaling it to turn on. We tried:
Swap to the 94 alternator, still no charge.
Have voltage all the way up to + on alternator.
Checked continuity between Pin L on alt connector to RB4 on PCM connector, checked ok
Voltage coming out of PCM to Pin L while running is .04V (should be around 12V?)
Both cars charged fine before the engine swap. We don't have a scanner to check for codes. Check engine light is not on though. It'* a 94 with the OBD-II connector, so checking flash codes isn't possible.
Any suggestions? Not sure if the PCM could have gone bad, since it was charging before the swap.