DTC P0101 Mass Air Flow Circuit Range / Performance Problem: Description
WARNING: This page is about a different car, the 2007 Lexus GS 430. However, it is still accessible from the selected car via links, so may be relevant.
Refer to
DTC P0100 MASS AIR FLOW CIRCUIT MALFUNCTION; DTC P0102 MASS AIR FLOW CIRCUIT LOW; DTC P0103 MASS AIR FLOW CIRCUIT HIGH .
DTC TROUBLE 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%
|
- Mass Air Flow (MAF) meter
- Air induction system
- PCV hose connections
|