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Home >> Toyota >> 2007 >> Camry Hybrid >> Repair and Diagnosis >> Engine Performance >> Engine Control System (Hybrid) >> SFI System >> DTC P0101: Mass Air Flow Circuit Range/Performance Problem >> Typical Enabling Conditions

Typical Enabling Conditions

TYPICAL ENABLING CONDITIONS

Monitor runs whenever following DTCs not present P0115-P0118 (ECT sensor)
P0120 - P0223, P2135 (TP sensor)
P0125 (Insufficient ECT for closed loop)
P0335 (CKP sensor) P0340 (CMP sensor)
Speed Less than 2,000 rpm
Engine coolant temperature 70°C (158°F) or more

Mass Air Flow Meter Rationality (High Voltage): 

MASS AIR FLOW METER RATIONALITY (HIGH VOLTAGE)

Engine speed Less than 2,000 rpm
Engine coolant temperature 70°C (158°F) or higher
IAT sensor circuit OK
ECT sensor circuit OK
CKP sensor circuit OK
TP sensor circuit OK
Canister pressure sensor circuit OK
EVAP leak detection pump OK
EVAP vent valve OK

Mass Air Flow Meter Rationality (Low Voltage): 

MASS AIR FLOW METER RATIONALITY (LOW VOLTAGE)

Engine speed More than 500 rpm
Fuel out OFF