Camaro RS V8-305 5.0L VIN E TBI (1990)
Knock Sensor: Description and Operation
PFI
The knock sensor is located in the engine block and sends a signal to the ESC module which then sends a signal to the ECM which retards ignition
timing during a spark knock condition. When the knock sensor senses no more knocking the ECM advances timing in small increments. This allows the
ECM to maintain maximum timing advance under various conditions.
