Processor Assembly

The processor assembly contains circuits designed to:

• Continuously sample the 7 (8 on EFI models) engine sensor input signals for analysis. See Figure.
• Convert the input signals to a form usable by the computer section in calculations.
• Choose the proper operating strategy (base engine, modulator, or limited operational) for the operating conditions.
• Perform spark, EGR, air/fuel ratio, canister purge, throttle kicker, thermactor air control and other functions.
• Send electrical output signals to the fuel injectors, ignition module, and control solenoids to adjust timing and dwell, air/fuel ratio, canister purge mode, EGR flow rate, thermactor air mode, throttle kicker mode and fuel control.

The processor assembly also provides a continuous reference voltage (about 9 volts) to the sensors.