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Home >> Lexus >> 2006 >> GS 430 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (3UZ-FE) >> SFI System >> DTC P0101 Mass Air Flow Circuit Range / Performance Problem >> Typical Enabling Conditions
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Typical Enabling Conditions

ALL: 

TYPICAL ENABLING CONDITIONS

Monitor will run whenever these DTCs are not present P0115 - P0118 (ECT sensor)
P0120 - P0223, P2135 (TP sensor)
P0125 (insufficient ECT for closed loop)
P0335 (crankshaft position sensor)
P0340, P0341 (camshaft position sensor)

Case 1: Mass air flow meter rationality (high voltage) 

ENGINE SPEED SPECIFICATIONS

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

Case 2: Mass air flow meter rationality (low voltage) 

ENGINE SPEED SPECIFICATIONS

Engine speed More than 300 RPM
Fuel cut OFF