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Home >> Toyota >> 2011 >> Avalon Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System SFI System (Diagnostic Codes (P0010 - P0128)) >> SFI System >> DTC P0101: Mass Air Flow Circuit Range / Performance Problem (FROM 12/2010) >> Typical Enabling Conditions
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Typical Enabling Conditions

Monitor runs whenever following DTCs are not present None
TP (Throttle position) sensor voltage 0.2 to 2 V
Time after engine start 5 seconds or more
Battery voltage 10.5 V or more
ECT 70°C (158°F) or more
Estimated load 30 to 70%
MAF sensor circuit fail (P0102, P0103) Not detected
IAT sensor circuit fail (P0112, P0113) Not detected
ECT sensor circuit fail (P0115, P0117, P0118) Not detected
CKP sensor circuit fail (P0335) Not detected
TP sensor circuit fail (P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135) Not detected
EVAP system pressure sensor circuit fail (P0452, P0453) Not detected
EVAP leak detection pump fail (P2401, P2402) Not detected
EVAP system vent valve fail (P2419, P2420) Not detected