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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R Spec V >> Repair and Diagnosis >> External Pages >> Different car >> Section 1917 (Engine Control System (2AZ-FE)) >> SFI System >> DTC P0101 Mass or Volume Air Flow Circuit Range / Performance Problem >> Typical Enabling Conditions
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Typical Enabling Conditions

WARNING: This page is about a different car, the 2006 Scion tC. However, it is still accessible from the selected car via links, so may be relevant.
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, P0341 (CMP sensor)

Mass Air Flow Meter Rationality (High Voltage): 

ENGINE SPEED REFERENCE CHART

Engine speed Less than 2,000 rpm
Engine coolant temperature 70°C (158°F) or more
Mass air flow meter voltage 4.9 V or less

Mass Air Flow Meter Rationality (Low Voltage): 

ENGINE SPEED REFERENCE CHART

Engine speed More than 300 rpm
Mass air flow meter voltage 0.2 V or more
Fuel cut OFF