Delphi AS10342 Knock Sensor

The Delphi AS10342 is a direct-fit OE-quality knock sensor designed to detect engine detonation and pre-ignition events. The knock sensor monitors engine vibration frequencies and sends a signal to the engine control module (ECM), which adjusts ignition timing to eliminate harmful knock and protect internal engine components.

Key Features:

• OE-matched design for precise fit and reliable performance
• Manufactured by Delphi, a Tier 1 original equipment supplier trusted by major automakers worldwide
• Detects abnormal combustion (knock/ping/detonation) and relays signals to the ECM for real-time timing correction
• Helps prevent engine damage caused by pre-ignition and detonation
• Direct replacement — no modification required for installation
• Meets or exceeds OEM specifications for signal accuracy and durability

As a leading OE supplier, Delphi engineers this knock sensor to the same standards used on the original assembly line. Replacing a faulty knock sensor can resolve issues such as poor fuel economy, reduced engine performance, and illuminated check engine lights related to knock sensor fault codes (P0325–P0334 range).