Delphi AS10221 Ignition Knock (Detonation) Sensor

Ignition Knock Sensor for Hyundai and Kia

The Delphi AS10221 ignition knock sensor is built for vehicles that need accurate detonation detection and stable engine control feedback. It is a direct-fit sensor for select Hyundai Elantra and Kia Soul, Spectra, and Spectra5 applications, with OE-calibrated testing to support consistent readings.

• Ignition knock (detonation) sensor for engine timing feedback
• 1 connector, square connector shape, male connector gender
• 2 terminals with pin terminal type and male terminal gender
• Screw-mount design
• Package contents: ignition knock sensor
• Delphi AS10221 replacement for select Hyundai and Kia applications

OE-Calibrated Sensor Performance

Delphi AS10221 is part of Delphi’s sensor lineup, which is developed and validated to OE standards for accurate signal output. For drivers searching for a knock sensor for 2007-2012 Hyundai Elantra or a replacement knock sensor for 2010-2011 Kia Soul, this part is built to deliver the engine knock detection the control system relies on. It also cross-references Standard Ignition KS337 for the same application.

Vehicle Fitment

• Fits 2007-2012 Hyundai Elantra, N/A
• Fits 2010-2011 Kia Soul, N/A
• Fits 2007-2009 Kia Spectra, N/A
• Fits 2007-2009 Kia Spectra5, N/A

What It Helps Address

• Knock sensor fault codes
• Unstable ignition timing caused by inaccurate detonation feedback
• Engine performance issues related to failed knock detection
• Check engine light concerns tied to the knock sensor circuit
• Driveability problems on Hyundai Elantra and Kia applications

Installation Notes

Verify connector style, terminal count, and screw-mount configuration before installation. Mounting hardware is not included. Inspect the harness connector and mounting surface for corrosion or damage, and clear diagnostic trouble codes after replacement if required by the vehicle repair procedure.

Quality Assurance

Delphi tests and calibrates its sensors to OE standards and uses product validation methods to support accurate readings and reduce repeat repairs. The AS10221 is backed by that OE-focused development process for dependable fit and signal output.