Town & Country Van V6-201 3.3L VIN R SMFI (1990)
Detonation (Knock) Sensor: Description and Operation
Detonation (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 sends a signal to the engine controller indicating that ignition knock (ping) is
occuring. The engine controller will then adjust the spark advance in order to eliminate the detonation.