jesvilla

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

lt-1guy96

Ok the lt1 and lt4 harness is the same..also the comp is the same but different tune...the maf code sounds like a blown fuse or broke wire

jesvilla

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

jaycenk

iTrader: (1)

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.

jesvilla

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