What is an ECU? ECU stands for Electronic Control Unit – basically a computer that handles various functions in your car.

The General Motors microprocessor based Computer Controlled Catalytic Converter (C-4) system used on 1980 California vehicles and nationwide in 1981 is presented. The basic system function is to ...

The majority of this installation involves wiring and computer input, so if you’re not comfortable with crimping and cutting, or basic PC functions, it may be best to leave this install to a ...