Possible Causes
WARNING: This page is about a different car, the 2002 Nissan Pathfinder and 2002 Infiniti QX4. However, it is still accessible from the selected car via links, so may be relevant.
ECM will set DTC P0327 when ECM receives an excessively low voltage from knock sensor.
ECM will set DTC P0328 when ECM receives an excessively high voltage from knock sensor. Possible causes are:
- Knock sensor circuit open or shorted.
- Poor, loose, corroded or damaged terminal connections.
- Defective knock sensor.