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

Fault Criteria

Closed loop blocked in rich mode for more than 35 combustions.

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