Check Engine Light Due to Failed Knock Sensor on Subaru Impreza Outback Sport

The Check Engine Light may illuminate because of a failed knock sensor. Although the sensor often tests okay, it can fail intermittently, while the vehicle is being driven.

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Average mileage: 61,500 (48,000–75,000)
Engine affected: 2.5L 4 Cylinder
6 model years affected: 2005, 2006, 2007, 2008, more2009, 2010
8 people reported this problem
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