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Home >> Scion >> 2006 >> xA Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (1NZ-FE) >> SFI System >> DTC P0101 Mass Air Flow Circuit Range / Performance Problem >> Typical Enabling Conditions
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Typical Enabling Conditions

TYPICAL ENABLING CONDITIONS

Monitor runs whenever following DTCs not present P0115 - P0118 (ECT sensor)
P0120 - P0123 (TP sensor)
P0125 (insufficient ECT for closed loop)
P0335 (crankshaft position sensor)
P0340 (camshaft position sensor)

Mass Air Flow Meter Rationality (High Voltage): 

MASS AIR FLOW METER REFERENCE (HIGH VOLTAGE)

Engine speed Less than 2,000 rpm
Engine coolant temperature 70°C (158°F) or more

Mass Air Flow Meter Rationality (Low Voltage): 

MASS AIR FLOW METER REFERENCE (LOW VOLTAGE)

Engine speed More than 300 rpm
Fuel cut OFF