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Home >> Toyota >> 2010 >> FJ Cruiser 4WD, Part Time >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (Diagnostic Codes (P0010-P0339) >> SFI System >> DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1); DTC P0174: System Too Lean (Bank 2); DTC P0175: System Too Rich (Bank 2) >> Typical Malfunction Thresholds
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Typical Malfunction Thresholds

FUEL-TRIM

Purge-cut Executing
Either of following conditions 1 or 2 met -
1. Average between short-term fuel trim and long-term fuel trim 35% or more (varies with ECT)
2. Average between short-term fuel trim and long-term fuel trim -35% or less (varies with ECT)