Abstract: The ability of an automotive computer for controlling an engine is enhanced by allowing the automotive computer to be controlled by an arbitrarily selected one of a plurality of engine control programs according to arbitrary driver discretion. The bus connecting the computer and memory of a conventional automotive computer is connected to a computer controlled operator interactive control module and an expanded memory. The operator interactive control module allows a human operator to select one of a plurality of memories for coupling to the automotive computer to control engine performance. User on-site customization of the engine control program is permitted by allowing direct downloading of an engine control program into the automotive computer through the operator interactive control.

Abstract: The ability of an automotive computer for controlling an engine is enhanced by allowing the automotive computer to be controlled by an arbitrarily selected one of a plurality of engine control programs according to arbitrary driver discretion. The bus connecting the computer and memory of a conventional automotive computer is connected to a computer controlled operator interactive control module and an expanded memory. The operator interactive control module allows a human operator to select one of a plurality of memories for coupling to the automotive computer to control engine performance. User on-site customization of the engine control program is permitted by allowing direct downloading of an engine control program into the automative computer through the oeprator interactive control.