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Home >> Lexus >> 2008 >> IS F >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - SFI System Diagnostics (2 Of 4) >> DTC P0125 Insufficient Coolant Temperature for Closed Loop Fuel Control >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

TYPICAL MALFUNCTION THRESHOLDS CHART

Time until actual engine coolant temperature reaches closed loop fuel control enabling temperature 55 seconds Engine coolant temperature at engine start -8 34°C (17°F) or more
113 seconds Engine coolant temperature at engine start-19 45°C (-3 0°F) or more to less than-8 34°C (17 0°F)
1200 seconds Engine coolant temperature at engine start less than -19 45°C (-3 0°F)