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

Conditions (a), (b) and (c) continue for more than 10 seconds (2 trip detection logic):

1. Engine running
2. Engine coolant temperature is 70°C (158°F) or higher
3. Throttle Position (TP) sensor voltage 0.24 V or more
4. d. Average engine load value ratio less than 0.83, or more than 1.19 (varies with estimated engine load)
5. Average engine load value ratio = Average engine load based on MAF meter output / Average engine load estimated from driving conditions
6. e. Average air-fuel ratio less than -20%, or more than 20%