P0327 CHEVROLET – Knock Sensor Circuit Low Input

 

P0327: DIY Repairing Video Tutorial

https://youtu.be/csdOAGy20u0

Check out nonda Auto DIY Center for more engine error code repairing videos.
https://www.youtube.com/playlist?list=PL-Lyko0O0oxHe1AGvzwAz-wokJPXAtW97

 

P0327 CHEVROLET Possible Symptoms

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

P0327 CHEVROLET Possible Causes

  Faulty knock sensor,Knock sensor circuit poor electrical connection,Knock sensor harness is open or shorted,Faulty Powertrain Control System (PCM)  

P0327 CHEVROLET Description

  The Knock Sensor (KS) system monitors both knock sensors in order to determine if detonation is present. If the KS system determines that excessive knock (detonation) is present, the Powertrain Control System (PCM) retards the spark timing based on the signals from the KS system. When knock is present, the KS system voltage input signal to the PCM goes low. The PCM then retards timing until no knock is present.