Delphi AS10321 Ignition Knock (Detonation) Sensor

Delphi AS10321 Ignition Knock Sensor

Delphi AS10321 is an ignition knock (detonation) sensor built for accurate engine signal detection and OE-style replacement performance. It is a direct-fit sensor for select Chevrolet applications, including Cruze and Sonic models, with a 2-terminal, male-pin design and oval connector shape.

Key Features

• Ignition knock (detonation) sensor for engine knock signal monitoring
• 2 terminals with male pin terminals
• 1 oval male connector
• Screw-mounted design
• Package contents: ignition knock sensor only
• OE-calibrated and tested to support accurate readings

Vehicle Fitment

• Fits 2012-2018 Chevrolet Sonic, N/A
• Fits 2016 Chevrolet Cruze Limited, N/A
• Fits 2011-2015 Chevrolet Cruze, N/A

Detailed Description

This Delphi knock sensor, part number AS10321, is engineered for vehicles that rely on precise detonation feedback to help the engine control system manage spark timing. It cross-references Standard Ignition KS395 for the same application. Delphi validates and calibrates its sensors to OE standards, helping ensure consistent signal output for Chevrolet Cruze and Chevrolet Sonic fitments. If you are replacing a faulty knock sensor on a 2011-2015 Chevrolet Cruze, a 2016 Chevrolet Cruze Limited, or a 2012-2018 Chevrolet Sonic, AS10321 provides the correct connector style, terminal count, and screw-mount configuration.

What It Helps Address

• Knock sensor fault codes
• Audible pinging or detonation under load
• Incorrect ignition timing caused by poor knock signal input
• Reduced engine performance from inaccurate sensor readings
• Check engine light concerns related to knock sensor circuit issues

Installation Notes

Verify connector shape, terminal count, and mounting style before installation. Delphi AS10321 uses a screw mount, 1 connector, and 2 male terminals, so the replacement should match the original sensor configuration on the vehicle. Inspect the harness connector and mounting surface for corrosion or damage before installing the new sensor.

Quality Assurance

Delphi sensors are developed and validated using OE-focused methods and calibrated to OE standards for accurate readings. This helps support reliable engine management performance and reduces the chance of repeat repairs.