I have a 1997 gmc sierra 1500. I want to replace the 97 computer with a 1998 computer. So I can tune it. can I do that.
97 is OBD 2 as well. Anytime you replace a GM OBD 2 "computer" (PCM) it must be "flashed", or re-programed using your VIN. Otherwise it won't work. HTH. -Jim
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