Having problems with your 1988 Chevrolet C/K 3500 ?
I have a 92 chevy 3500 w/ throttle body 2wd. its showing me error code 12. the manual doesnt have a 12 code for this truck.
Code 12 is the diagnostic code. its only purpose is to let you know that the system is in diagnostic mode. if this is the only code you are getting, your system is fine.
Repair Help & Product Troubleshooting for 1988 Chevrolet C/K 3500
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