Product Review

An ACDelco Professional, premium aftermarket Ignition Knock (Detonation) Sensor is the high quality replacement ideal for many vehicles on the road today. It monitors the engine for pinging or spark knock. The sensor creates a voltage signal based on the vibrations caused by erratic air/fuel mixture combustion; the engine control module uses this signal to adjust the ignition timing and air/fuel mixture. This premium aftermarket replacement ignition knock sensor is manufactured to meet your expectations for fit, form, and function.