Check Engine Light due to Oxygen Sensor Failure on Saab 9-3

The Check Engine Light may illuminate because of oxygen sensor failure. There may be no drivability symptoms detected though gas mileage may suffer.

 

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Average mileage: 133,500 (129,000–138,000)
Engine affected: 2.0L 4 Cylinder Turbo
3 model years affected: 2001, 2003, 2004
4 people reported this problem
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