I've tried the paperclip trick and it wont do anything. The service engine soon light wont come on. The check gauges light and the battery light are the only lights that stay on when I turn the key on.
I believe its an OBD1. Whats the difference? The truck is running rough, and has lack of power. I've changed the plug wires, dist. cap, rotor button, and coil. It starts quicker, but still running rough.
94-95 was a transistional time its not obd2, its not obd1 because the clip would work. you have to get a specific reader that says it does GM 1.5. did you change the fuel filter, check for 9-13psi, or look down the tbi at the spay pattern?
code 12 is system self check..After running for a short period of time check to see if your cat convertor is alot hotter than the rest of your exhaust..Also how is your fuel pressure?how many miles are on the truck