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P0326 Diagnostic Trouble Code Discussion for September 2006

Knock Sensor Excessive Spark Retard

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Trouble Ticket Help Requests for DTC P0326
Help Request Posted
1997 Saturn SL2 1.9L Surge VIN: 1G8ZJ5272V
P0326: Knock Sensor Signal Performance. Found POS battery cable loose, causing a no crank/no start. Cleared codes and drove for 15 mi no codes came back. Car has flat spot/ EGR surge when EGR is opening about 1/4 to 3/4 throttle, EGR voltage and % match on scanner.When I unplug EGR car runs good. Ha...
September 12, 2006