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.

10

Asked by Jun 12, 2012 at 12:09 AM about the 1997 GMC Sierra 1500 C1500 SLE Standard Cab LB

Question type: Car Customization

Switch 97 computer to a 98 obd2 computer.

1 Answer

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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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