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WARNING: This page is about a different car, the 2002 Saab 9-5 and 2001 Saab 9-5. However, it is still accessible from the selected car via links, so may be relevant.
General conditions for this trouble code: Atmospheric pressure must exceed 72 kPa and the engine coolant and intake air temperature must exceed -7°C.
Engine running for 3 min. Car driven at engine speed 1300-2200 RPM with load corresponding to 250-500 mg/c (air mass/combustion). Closed loop active and stable. Air mass/combustion stable. Purging active. Coolant temperature above 70°C. When all the criteria have been fulfilled, the number of ignitions during 2 sensor transitions is counted.