California Vehicles (Digifant I)

Digifant I Throttle Valve Potentiometer:

The throttle valve potentiometer, which is mounted beneath the throttle body, provides information to the Digifant I control unit concerning throttle valve position.

When the throttle valve is in the closed position the potentiometer doubles as an idle switch, activating idle speed stabilization and deceleration fuel shut-off. It also provides a substitute engine-load signal in the event of an air flow sensor failure. The information is also used by the control unit for activation of special ignition timing maps as needed. The Digifant control unit responds the varying resistance signal from the potentiometer.

NOTE: Because of its adaptive capability, the Digifant I control unit MUST be returned to its reference settings IF:

1. The coolant temperature sensor (blue connector) has been disconnected while the engine is running.

2. Any of these components have been replaced:
^ Digifant I control unit
^ Air flow sensor
^ Throttle valve potentiometer
^ Throttle body

Adjustments