[z28camaro94]

ok.....so i think i got it fixed. i took the pins for the serial data out of the connector at the ebcm and the derm. when to scan it and yes it connected!!!! so plugged the pin back in on the ebcm. still reads it. and finally reconnected the pin on the derm and it still connected. im still at a lose for what caused it, but who cares at this point. i can read the comp. I did do a continuity test on the serial data to both the ebcm and the derm while i had them disconnected. the ebcm and derm showed 3ohms with the dial on my DMM set to 2000. not sure if that means it was actually 3ohms or not. but that might be what was causing the prob. just glad to have it fixed now.

now to put the old comp back it and see if i can get memory codes out of it. from when it did its wierd thing from the OP. will keep it updated just incase anyone else has this prob in the future. thanks for the help guys!!