Possible causes

– Faulty knock sensor
– Knock sensor circuit poor electrical connection
– Knock sensor harness is open or shorted
– Faulty Engine Control Module (ECM)

Tech notes

The P0325 code means that the Knock Sensor is not working properly. Problems with the knock sensor will not cause an engine performance problems. Replacing the knock sensor usually takes care of the problem.

When is the code detected?

When an excessively low or high voltage from the sensor is sent to Engine Control Module (ECM)

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– Possible Lack/Loss of Power

P0325 Description

The knock sensor is attached to the cylinder block. It senses engine knocking using a piezoelectric element. A knocking vibration from the cylinder block is sensed as vibrational pressure. This pressure is converted into a voltage signal and sent to the Engine Control Module (ECM).

P0325 Information for specific makes

P0325 HONDA
P0325 INFINITI
P0325 KIA
P0325 LEXUS
P0325 MAZDA
P0325 MITSUBISHI
P0325 NISSAN
P0325 1996 HONDA CIVIC
P0325 SCION
P0325 TOYOTA
P0325 HYUNDAI
P0325 1997 HONDA CIVIC
P0325 1998 HONDA CIVIC
P0325 2000 HONDA CIVIC
P0325 BUICK
P0325 CADILLAC
P0325 CHEVROLET
P0325 GMC
P0325 PONTIAC
P0325 SATURN
P0325 FORD
P0325 2003 KIA SEDONA