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P0326 Diagnostic Trouble Code Discussion for July 2010

Knock Sensor Excessive Spark Retard

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Trouble Ticket Help Requests for DTC P0326
Help Request Posted
2007 Chevrolet Colorado LS 3.7L MIL Lamp on VIN: 1GCCS14917
P0326: Knock Sensor Excessive Spark Retard. ... will illuminate in this vehicle with no driveability complaint. Each time we pull two codes: P0326 Knock Sensor Perf and P0171 Lean O2 Sensor and read 3 freeze frames. Two of the freeze frames are for Code P0171 and were recorded at 34 miles and 1043 miles...
July 01, 2010