68FirebirdAP

iTrader: (3)

I just bought a 4.8 and a ECU/wiring harness. The guy says the ECU was from an 04 tahoe 4x4, but is there a way to verify that?

I have attached a picture of the Bar Code of the ECU.



Any help is appreciated.

I am not sure how to upload pics so here is a link to the image in google drive if the above doesnt work:
https://docs.google.com/file/d/0B93H...jRTUyRTlN/edit

toplessHO

iTrader: (25)

I typed that service # and the flash code into google and in 30 sec had an answer
fits 574 different vehicles 03-07

MontecarloDrag

iTrader: (3)

you need a bench harness and tuning software to chech it. Some obd2 scanners can do the job