DTC P0101 Mass Air Flow Circuit Range / Performance Problem: Description

WARNING: This page is about a different car, the 2007 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.

Refer to DTC P0100 .

DTC DETECTION CONDITION CHART

DTC No.	DTC Detection Condition	Trouble Area
P0101	Conditions (a), (b), (c), (d) and (e) are met (2 trip detection logic): Engine running Engine coolant temperature 70°C (158°F) or higher Throttle Position (TP) sensor voltage 0.24 V or more Average engine load value ratio less than 0.85, or more than 1.83 (varies with estimated engine load) Average engine load value ratio = Average engine load based on MAF meter output / Average engine load estimated from driving conditions Average air-fuel ratio less than -20%, or more than 20%	MAF meter