Sentra XE L4-1597cc 1.6L DOHC MFI (GA16DE) (1997)
Knock Sensor: Description and Operation
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 ECM.
* Freeze frame data will not be stored in the ECM for the knock sensor.
The MIL will not light for knock sensor malfunction.