put a 1995 camaro lt1 into my 1988 pickup truck 4x4. Was running excellent. Now the truck is stumbling, hesitating and not always responding to the gas pedal. This happened after i took the fuel filter out for a few days and ran it with out a fuel filter. ive run 2 cans of injector cleaner through the motor, hasnt helped. I have no idea what sensor is screwed up, or if its a plugged injector, could be anything, so i hooked up the service engine soon light, and tried to have it flash me the codes, but couldnt figure out what pin to ground. in my manual it says that some computers cant do this, and require a scan tool. (the 94-95 cars with 16 pind aldl hookup, as opposed to 12 pin) but i have no idea what cable it came with cause i didnt get it with the swap. How do i go about installing one of these cables if i go get one from a wrecked camaro in the junkyard, so i can hookup a scan tool. thanks