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Home >> Toyota >> 2013 >> Matrix S, FWD, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (2AZ-FE) (Diagnostic Codes (P0010-P0456)) >> SFI System >> DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1) >> Monitor Strategy
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Monitor Strategy

Related DTCs P0171: Fuel trim Lean
P0172: Fuel trim Rich
Required Sensors/Components (Main) Fuel system
Required Sensors/Components (Related) 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