The PCM is located behind the drivers headlight below the air cleaner.
Passenger side kick panel area.
Yes a lt1 will fit in a 1991, but i believe the motor mounts are a little different for the lt1. You cannot transplant it though without an PCM from an lt1, which needs a 4l60E transmission to control the transmission and engine codes. There are standalone kits available but they cost more than a PCM.
A tuning program for the PCM is the correct answer, PCM For Less can do it for you quickly and at a reasonable price.
Lower right side kick panel
How do you replace the PCM ON A 1994 Ford Tempo GL?
It is right beside the battery and just under the upper radiator hose were it hooks to the radiator.
The PCM (Power Control Module) is located under the passengers side kick panel in a 1995 astro. REPLACEMENT: Novice CAUTIONS: * You MUST disconnect the battery to replace this unit
radiator coolant switch, pcm coolant switch, relay , pcm , related circuitry or fuse.
The 2003 Chevrolet Malibu PCM valve can be found on the firewall in the engine compartment. The PCM valve will be on the passenger side of the firewall.
Has to be reprogrammed at a dealer.
The PCM uses a dozen sensors that are located all over the engine.The PCM uses a dozen sensors that are located all over the engine.
The PCM is located on the right side (inside) behind the instrument panel near the shroud