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Home >> Toyota >> 2007 >> Prius Base >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> SFI System >> DTC P0171 System Too Lean (Fuel Trim); DTC P0172 System Too Rich (Bank 1) >> Monitor Strategy
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Monitor Strategy

MONITOR STRATEGY

Related DTCs P0171: Fuel system lean (bank 1)
P0172: Fuel system rich (bank 1)
Required sensors/components Main:
A/F sensor
Related:
Engine coolant temperature sensor, mass air flow meter, crankshaft position sensor
Frequency of operation Continuous
Duration 10 seconds
MIL operation 2 driving cycles
Sequence of operation None