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Home >> Saab >> 2001 >> 9-5 Base, 4D Wagon, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Fault Code Diagnosis >> P1131: O2S - Switch Point - Lean, Sensor 1 >> Enable Criteria
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Enable Criteria

General conditions for this trouble code: Atmospheric pressure must exceed 72 kPa and the engine coolant and intake air temperature must be above -7°C.

Engine running. Closed loop blocked in rich or lean mode for a number of combustions in order to maintain a voltage of 0.6 volts from oxygen sensor 2. The number of combustions required is adapted.

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