|Steps||_Key Off, wait 10 seconds
_Disconnect vehicle harness from Vane Meter Inspect for damaged pins, corrosion, loose wires, etc. Service as necessary
_Run Key On Engine Off Self-Test
|Result||Is Code 58 present?|
Replace Vane Meter. Reconnect harness to Vane Meter. Rerun Quick Test
GO to Continue
|Component||Vane Airflow Meter|
|Description||The VAM measures air flowing into the engine. The meter contains a movable vane directly connected to a potentiometer.
Air, rushing through the VAM, changes the position of the vane and the potentiometer.
The potentiometer relays vane position information to the EEC. The EEC can then translate vane position information into the volume of air flowing into the engine
The VAM also contains an air temperature sensor. The sensor constantly monitors the temperature of the air flowing into the engine and reports the information to the EEC.
The EEC computes volumetric airflow and air temperature, then adjusts the fuel flow to obtain the optimum air/fuel ratio.
|Location||Mounted between the air cleaner and turbo inlet|
|Wire Colors||White with Black stripe
Light Green with Purple stripe
Orange with White stripe
Black with White stripe