Range Rover (LH) V8-3.5L (1987)
Malfunction Indicator Lamp: Description and Operation
EFI Warning Lamp (Instrument panel) An EFI warning symbol incorporated into the instrument panel will illuminate when the ECU detects
that it cannot maintain correct air/fuel ratio due to a fault in one of the following fuel injection system components:
-
Air flow sensor
-
Oxygen/Lambda sensor
-
Coolant/Water temperature sensor
-
Throttle Position/Potentiometer
The symbol will illuminate on initial turn of the ignition key as part of the bulb check feature, and will go out after a few seconds.
If the symbol illuminates when the engine is idling or the vehicle is being driven, it indicates a failure of one of the four functions. The
light will continue to come on until fault is corrected. There is no reset procedure.
The vehicle should be driven with care and the cause rectified. Refer to EFI Circuit Diagnosis. See: Testing and Inspection
Should one of the functions fail, the vehicle can still be driven due to a limp home feature incorporated into the fuel injection system.