Computerized Engine Controls: Notes

All models use either a Bosch LH-Jetronic multi-point fuel injection system with EZ116K electronic ignition system or Regina (Bendix) multi-point fuel injection system with Rex-1 electronic ignition system. Both systems have self-diagnostic capabilities.

Both systems use an Electronic Control Unit (ECU) receiving input from engine monitoring sensors. These sensors include; coolant temperature sensor, air temperature sensor (Regina), pressure sensor (Regina), oxygen sensor, knock sensor (turbo), mass airflow meter (Bosch) and throttle switch. ECU uses these input signals to control air/fuel mixture for emission control, fuel economy and good driveability. Ignition control is provided by a separate ignition ECU. Turbo models also use a turbo ECU.