Z31 Z31 Detonation Sensor *Knock* (VG30ET)
The Detonation Sensor is located on the Right side of the engine block right behind the alternator mounting bracket on the Turbo Models.*WARNING* - Do this modification at your own risk. We Are not responsable for any issues of your own doing.
What does the Detonation Sensor Do
The Detonation Sensor (Knock Sensor) on the VG30ET engine is only designed for emergencies and not normal operation. The ignition timing is pre-programmed into the ECU, including basic anti-knock settings.
This sensor is only really used up to about 3200 rpm.
How it works: When the sensor detects knock in that RPM range, it sends a signal to the ECU to retard the timing slightly, helping to reduce knock.