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Home >> Toyota >> 2006 >> Matrix Base, FWD, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Control System (2ZZ-GE)) >> SFI System >> DTC P0171 System Too Lean (Bank 1); DTC P0172 System Too Rich (Bank 1) >> Typical Malfunction Thresholds
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Typical Malfunction Thresholds

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TYPICAL MALFUNCTION THRESHOLDS CONDITIONS

EVAP purge-cut Executing
Either of the following conditions set: -
Average between short-term fuel trim and long-term fuel trim 35% or more (varies with ECT)
Average between short-term fuel trim and long-term fuel trim -35% or less (varies with ECT)