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Home >> Toyota >> 2007 >> FJ Cruiser 4WD, Part Time >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> SFI System >> DTC P0171, P0172, P0174, P0175: System Too Lean (Bank 1); System Too Rich (Bank 1); System Too Lean (Bank 2); System Too Rich (Bank 2) >> Typical Malfunction Thresholds
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Typical Malfunction Thresholds

Fuel-trim: 

TYPICAL MALFUNCTION THRESHOLDS

Purge-cut Executing
Either of following conditions 1 or 2 met -
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)