Daytona IROC R/T L4-135 2213cc 2.2L DOHC Turbo VIN A FI (1993)
Knock Sensor: Description and Operation
LOCATION
Sensor mounted in engine block.
PURPOSE
Sensor informs Powertrain Control Module (PCM) detonation has occurred.
PCM retards timing until detonation is no longer detected.
Knock Sensor Operation
OPERATION
Sensor generates a signal when spark knock, (pre-ignition, detonation, or pinging) occurs in combustion chamber, (due to vibration of the piezo
electric crystal).
