Computerized Engine Controls: Notes

Fuel injection system is Throttle Body Injection (TBI). The electronic fuel injection engine control system monitors vehicle operating conditions through input signals and regulates air/fuel mixture and other engine control operations by output signals. This lowers exhaust emissions, while maintaining fuel economy and driveability.

The control systems have a fail-safe mechanism. If a fault occurs while driving, the system will substitute pre-programmed values. Driving performance will be affected, but vehicle may still be driven. These systems have a self-diagnostic feature capable of recognizing a system fault and storing a related trouble code in memory for future retrieval and diagnosis.