LEMON Manuals: Even more car manuals for everyone
Home >> Scion >> 2012 >> tC Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P0010-P0504)) >> SFI System >> DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1) >> Monitor Strategy

Monitor Strategy

Related DTCs P0171: Fuel trim lean
P0172: Fuel trim rich
Required Sensors/Components Air fuel ratio sensor, Mass air flow meter, Crankshaft position sensor
Frequency of Operation Continuous
Duration Within 10 seconds
MIL Operation 2 driving cycles
Sequence of Operation None