900 L4-1985cc 2.0L DOHC Turbo EFI (1985)
Air Flow Meter/Sensor: Testing and Inspection
CHECKING THE MASS AIR FLOW SENSOR
Start the engine and let it run at idling speed. Check the CO content. If it is higher than 6% it cannot be adjusted by means of the CO adjusting screw.
Switch off the engine.
1. Remove the mass air flow sensor from the air cleaner side. Check whether the hot wire (filament) is intact.
A.Hot wire (filament) defective: Change the mass air flow sensor.
B.Hot wire (filament) OK: Check the mass air flow sensor connector and wiring by:
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Unplugging the mass air flow sensor and control module connectors and removing the cover from the control module connector.
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Check that the wiring and connections are OK. If the wiring is OK, plug in the control module connector.
2. Check the hot wire (filament) burn-off function.
CHECKING THE HOT WIRE