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Home >> Toyota >> 2006 >> Matrix Base, FWD, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (1ZZ-FE) - SFI System (For 4WD) - DTC P0010 Through P0171 >> DTC P0171 System Too Lean (Bank 1); DTC P0172 System Too Rich (Bank 1) >> Monitor Strategy
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Monitor Strategy

MONITOR STRATEGY

Related DTCs P0171: Fuel trim Lean (bank 1)
P0172: Fuel trim Rich (bank 1)
Required Sensors/Components (Main) Fuel system
Required Sensors/Components (Related) Heated oxygen sensor (sensor 1), Mass air flow meter, Crankshaft position sensor
Frequency of Operation Continuous
Duration Within 10 seconds
MIL Operation 2 driving cycles
Sequence of Operation None