Subaru Impreza WRX STI Problems

Check Engine Light Due to Failed Knock Sensor on Subaru Impreza WRX STI

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.

(9 people reported this problem)

Subaru Impreza WRX STI Vehicles With This Problem

RepairPal Verified
Average mileage: 32,000 (32,000–32,000)
Engine affected: 2.5L 4 Cylinder Turbo
7 model years affected: 2004, 2005, 2006, 2007, more2008, 2009, 2010
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Viewing 1-1 of 1 comments
low voltage knock sensor. crazy sporadic readings pulling timing and lowering DAM replaced