Mirage L4-1795cc 1.8L SOHC (1994)
Volume Air Flow Sensor: Initial Inspection and Diagnostic Overview
Hint 1: If the engine stalls occasionally, crank the engine and shake the volume air flow sensor harness. If the engine stalls, poor contact of the volume
air flow sensor connector is suspected.
Hint 2: If the volume air flow sensor output frequency is other than 0 when the ignition switch is turned ON (but not starting the engine), faulty volume
air flow sensor or engine control module is suspected.
Hint 3: If the engine can be run at idle even though the volume air flow sensor output frequency is out of specification, troubles are often found in other
than the volume air flow sensor itself.
EXAMPLES
1. Disturbed air flow in the volume air flow sensor (Disconnected air duct, clogged air cleaner element, debris in air cleaner)
2. Poor combustion in the cylinder (Faulty spark plug, ignition coil, injector, incorrect compression pressure, etc.)
3. Air leaking into the intake manifold through gap of gasket, etc.
4. Loose EGR valve seat
