Impreza Outback Sport

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

Problem Description and Possible Solution

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.

Problem Data
RepairPal Verified
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