Computerized Engine Controls

All models use a multi-point electronic fuel injection system with an electronic ignition system using computer controlled timing. Depending upon application, systems are either a Bosch LH-Jetronic (hot wire) or a Bendix supplied Regina unit. Both systems have self-diagnostic capabilities with a integral diagnostic unit for testing.

Both systems use an Electronic Control Unit (ECU) receiving input from engine monitoring sensors. These sensors include; coolant temperature sensor, oxygen sensor, mass airflow meter (Bosch), intake air temperature sensor (Regina) and pressure sensor (Regina). 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. Vehicles using Bosch fuel injection are equipped with a Bosch EZK ignition system. Vehicles using Regina fuel injection use a Rex 1 ignition system. Both systems have self-diagnostic capabilities and use same diagnostic unit as fuel injection system for testing.