'97 PCM issue
Thread Starter
Teching In
Joined: Mar 2010
Posts: 11
Likes: 0
'97 PCM issue Hello guys, I bought a '97, with the LT4 conversion, has AIR deleted, Mac shorties, 30 lb injectors and 52mm TB. I'm not sure why, but the PO changed the PCM to OBD1, 5-6 engine codes showing. Is there a way to identify the harness, I'm not sure if they changed it or not, I got a '97 OBD2 PCM and plugged it in, now only 2 codes, P0100-MAF, and skip shift code. I tried a different MAF off of my stock '96 LT1, but the MAF code still comes up.
Jesus
Jesus
Thread Starter
Teching In
Joined: Mar 2010
Posts: 11
Likes: 0
Thanks Lt-1guy
My car is missing the cover for the fusebox in the engine compartment, so I'll just pull 1 fuse at a time till I look at all of them. If I don't find any blown, then I'll go to the wires.
Jesus
My car is missing the cover for the fusebox in the engine compartment, so I'll just pull 1 fuse at a time till I look at all of them. If I don't find any blown, then I'll go to the wires.
Jesus
If the cover is missing I would use a tad of dielectric grease on them to make sure there is no problem with any of the fuse connections. I once had a fuse that the prongs it sits in were a tad stretched and were not making good contact to the fuse. Cause a no start condition that only required pinching the prongs back together. If you hit them the right way it can stretch the prongs the fuse sits in.
Thread Starter
Teching In
Joined: Mar 2010
Posts: 11
Likes: 0
Well I feel like a real dummy!!
Found one 20 amp fuse blown, replaced it, cleared the codes in the PCM, started it, and no more SES light, shut it off and connected the reader again, no codes... freekin awesome.
I didn't know the MAF had it's own circuit, I figured it was powered by the PCM.
Thanks guys
Jesus
Found one 20 amp fuse blown, replaced it, cleared the codes in the PCM, started it, and no more SES light, shut it off and connected the reader again, no codes... freekin awesome.
I didn't know the MAF had it's own circuit, I figured it was powered by the PCM.
Thanks guys
Jesus
