Federal Vehicles (Digifant II)

Air Flow Sensor:

1. With the ignition switch "OFF" remove the harness connector at the air flow sensor.
2. Connect a suitable volt/ohm meter between terminal 3 and 4 of the air flow sensor plug and measure the resistance.

^ The correct measurement should be approx. 500 to 1000 ohms

3. Disconnect the intake boot.
4. Connect the volt/ohm meter between terminal 2 and 3 of the air flow sensor plug. Measure the resistance while moving the air flow sensor flap.

^ The resistance should change as the flap is moved.

NOTE: If the flap binds or sticks when moved, replace the air flow sensor.


If the correct measurements are not obtained, the air flow sensor is defective. Replace the air flow sensor.