doughboy18718
Diesel Retard!
Are there any tuners/programmers for the earlier model trucks with the OBD-I systems?
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Well, you can buy the chips, or you can also purchase the burner for like $85 and if you knew what you were doing could make your own custom program. They even have on the fly emulators to test adjustments while driving.
I may have an extra chip that would work in your Yukon. Let me know what part numbers on your PCM, one of them is all #s, and the other has a 4 letter code inside of it like BPMD.... If you dont have that sticker on your ECM youll have to open up the flap on the back of it and see what code is on it the chip itself.
Do you know how to get to it?