Posts Tagged: how a knock sensor works

P0325 Code: What It Means and How to Fix It

What a Knock Sensor Code Means in Your Car Quick Summary: A P0325 code is defined as a Knock Sensor 1 Circuit Malfunction. This means the ECM has detected an issue with the knock sensor circuit. Don’t automatically assume the code means the sensor itself has failed. The most common causes of a P0325 code are: Wiring or Connector Problems  — The ECM sets a P0325 code when the knock sensor signal is missing, intermittent, or out of the expected range—and the bad wiring issues listed below can easily cause that. … Read More