Delphi knock sensors "listen" for a variety of knock frequencies under different operating conditions, to detect shifts and provide an accurate signal to the engine control module (ECM)

• Delphi knock sensors help maximize engine performance regardless of fuel quality and reduce potential damage to internal engine components.
• Extensive coverage
• Manufactured to meet or exceed OE requirements and testing

Tips & Tools For The Repair

• Helpful Tools: A Scraper, to remove carbon deposits on the engine; Intake Valve Cleaner, to clean the Intake Manifold; a Torque Wrench, to tighten the sensor(s) according to OE specifications.
• Replace all Knock Sensors together while you already have the intake removed. Engines typically have one knock sensor per bank.
• Old, brittle connectors often break during installation or removal - replace the corresponding Knock / Detonation Sensor Connector (found in the "Electrical-Connector" category) to prevent failure.