FixVault
Home
›
Toyota
›
2011
›
Prius
›
Repair and Diagnosis
›
Engine Performance
›
System
›
Engine Control System (Diagnostic Codes)
›
SFI System
›
DTC P0101: Mass Air Flow Circuit Range / Performance Problem
›
Typical Malfunction Thresholds
Typical Malfunction Thresholds
Both of the following conditions 1 and 2 are met
-
1. Averaged engine load value ratio
Less than 0.829, or more than 1.153 (varies with estimated engine load)
2. Averaged air fuel ratio
Less than -20%, or more than 20%