Delphi AS10255 Ignition Knock (Detonation) Sensor

Ignition Knock Sensor for Hyundai and Kia

The Delphi AS10255 ignition knock sensor monitors engine vibration and sends accurate detonation feedback to the engine control system. Built for OE-style signal accuracy, it supports proper spark timing control in Hyundai and Kia applications such as Sonata, Santa Fe, Sportage, Tucson, Optima, and Sorento.

• Delphi ignition knock (detonation) sensor, part number AS10255
• 2-pin design with round, male connector
• Pin terminal type, 2 terminals total
• Screw-mounted sensor body
• OE-calibrated and tested for accurate readings
• Direct replacement for select Hyundai and Kia vehicles

OE-Style Sensor Performance

Delphi AS10255 is part of Delphi’s sensor lineup, which is validated to OE standards for signal accuracy and consistency. This knock sensor is built to match the electrical and calibration requirements of the original application, helping the engine management system detect abnormal combustion events and respond correctly. It cross-references Standard Ignition KS383 for the same application.

Compatible With select 2007-2022 Hyundai and Kia models, including Fits 2007-2019 Hyundai Sonata, N/A; Fits 2010-2015 Hyundai Tucson, N/A; Fits 2010-2012 Hyundai Santa Fe, N/A; Fits 2013-2018 Hyundai Santa Fe Sport, N/A; Fits 2018-2021 Hyundai Tucson, N/A; Fits 2019-2020 Hyundai Santa Fe, N/A; Fits 2009-2020 Kia Optima, N/A; Fits 2009-2010 Kia Rondo, N/A; Fits 2011-2020 Kia Sorento, N/A; Fits 2011-2022 Kia Sportage, N/A.

What This Knock Sensor Helps Address

• Knock or pinging under load
• Incorrect ignition timing response
• Check engine light related to knock sensor faults
• Reduced engine smoothness from detonation detection errors
• Driveability issues caused by inaccurate engine feedback

Installation Notes and Tips

Verify connector shape, terminal count, and mounting style before installation. This sensor uses a screw mount and includes one male round connector with two male terminals; mounting hardware is not included. Confirm the vehicle application by year, make, and model before replacing the original sensor. Part number AS10255 is commonly searched for Hyundai Sonata, Tucson, Santa Fe, and Kia Sportage applications.

Quality Assurance

Delphi tests and calibrates these sensors to OE standards and uses product validation methods developed for original-equipment-level accuracy. That focus on calibration helps ensure the sensor delivers the signal quality expected by the engine control system in Hyundai and Kia applications.