TC BY Maserati L4-135 2213cc 2.2L DOHC Turbo VIN R FI (1990)
Knock Sensor: Description and Operation
Knock Sensor
The detonation sensor is a signal generator that operates when a spark knock occurs in the combustion chambers. The sensor is mounted in the engine
block where it can detect detonation in any of the cylinders. The sensor informs the Single Module Engine Controller (SMEC) to adjust the spark
advance in order to eliminate detonation.
