Resetting Ecu

The Digifant I ECU must be reset to its reference setting after certain conditions or repairs as follows:

• The blue coolant temperature sensor connector has been disconnected with the engine running
• The following components have been replaced:

Digifant ECU

Air Flow Sensor

Throttle Valve Potentiometer

Throttle Valve Body

When resetting the ECU, the engine must be at normal operating temperature, all electrical accessories must be Off, the idle stabilization system must be okay, and the exhaust system must be leak-free.

1. With the engine off, disconnect the crankcase ventilation hose from the emission control valve atop the valve cover, then plug the hose. Start the engine and let it idle. Disconnect the blue coolant temperature sensor harness connector.
2. Let the engine idle for one minute, then reconnect the harness connector.
   CAUTION: DO NOT reconnect the coolant temperature sensor harness connects, while the radiator cooling fan is running.
3. Turn the engine off and reconnect the crankcase ventilation hose. Erase the OBD fault memory. See CLEARING CODES  .