brewersprts

iTrader: (2)

To make a long story short, my Trans Am isn't running right and when I hooked up my simple code reader to it it power on but said no communication. I think took it to the dealer and when they tried to hook up their big money proper scanner, it also had no communication.

I checked the wiring beforehand and don't see any burned through or broken wires.

Dealer said they thought I needed to get a new computer. Over on the LT1 section they seem to think it wouldn't be the PCM. I took the PCM out of the car and it's a remanufactured one, not the original.

Also, the guy had an aftermarket tach wired into one of the wires coming out of the PCM harness. I removed it and covered the little slice in the insulation that the wire splice thing had made.

How can I go about seeing if I really need a new computer or if there is something else causing no communications?

Thanks in advanced for the help guys. Don't want to waste a bunch of money just throwing parts at the car but I do want to get it fixed.

brewersprts

iTrader: (2)

BTW. It's a 97. Obviously an LT1 and I know this is the LS1 section but I figured some PCM experts on here that wouldn't check the LT1 section might be able me.

MontecarloDrag

iTrader: (3)

Check the PCM service number. Being a 97 it should be OBD2 but maybe someone changed the PCM for a OBD1, I have done it myself.

brewersprts

iTrader: (2)

Unfortunately you can't read the label on it. It's too worn off. You can barely make out at the top that it says remanufactured.

I'm thinking that I might have to replace the computer just to know what I'm working with.