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Home >> Toyota >> 2005 >> Matrix Base, FWD, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Control System (SFI) (1ZZ-FE(4WD)) - Diagnostics) >> SFI System (1ZZ-FE (4WD)) >> DTC P0171, P0172: System Too Lean/Rich (Bank 1) >> Monitor Strategy
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Monitor Strategy

WARNING: This page is about a different variant/trim than selected.
MONITOR STRATEGY CHART

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