Motorad 1KS1029 Ignition Knock (Detonation) Sensor

Ignition Knock Sensor for OE-Style Engine Control

The Motorad 1KS1029 ignition knock sensor is built to deliver accurate knock detection so the ECM can adjust ignition timing based on real engine conditions. It is a direct-fit emission control sensor for select Mazda, Subaru, INFINITI, and Nissan applications, including Mazda 3, Mazda CX-5, Subaru Legacy, and Nissan Murano.

• Responds to a wide range of engine knock frequencies
• Supports precise timing control through the ECM
• Uses a high-quality piezoceramic element for consistent signal output
• Manufactured to tight tolerances for durability
• Built to meet or exceed OEM specifications

Detailed Product Overview

Motorad part number 1KS1029 is an ignition knock (detonation) sensor designed for vehicles that rely on accurate knock feedback to manage spark timing and engine performance. By translating vibration patterns into an electrical signal, the sensor helps the engine computer identify detonation events and respond appropriately. This makes it a practical replacement for drivers servicing Mazda 6, Mazda CX-3, Subaru Outback, INFINITI G35, or Nissan 350Z applications. This part cross-references 220602A000 and 13676440 for the same application.

Common Symptoms This Part May Address

• Check engine light related to knock sensor faults
• Audible pinging or spark knock under load
• Rough engine operation caused by incorrect ignition timing
• Reduced performance from inaccurate detonation feedback
• Diagnostic trouble codes tied to knock sensor circuit issues

Installation Notes and Tips

Verify the vehicle year, make, and model against the fitment list before ordering. Fits 2012-2018 Mazda 3, N/A; Fits 2016-2018 Mazda CX-3, N/A; Fits 2016-2018 Mazda MX-5 Miata, N/A; Fits 2014-2017 Mazda 6, N/A; Fits 2013-2017 Mazda CX-5, N/A; Fits 2008-2011 Subaru Legacy, N/A; Fits 2006-2011 Subaru Outback, N/A; Fits 2008-2011 Subaru Tribeca, N/A; Fits 2006-2010 INFINITI M45, N/A; Fits 2003-2008 INFINITI FX35, N/A; Fits 2003-2008 INFINITI FX45, N/A; Fits 2006-2008 INFINITI M35, N/A; Fits 2003-2007 INFINITI G35, N/A; Fits 2003-2007 Nissan Murano, N/A; Fits 2006-2007 Subaru B9 Tribeca, N/A; Fits 2005-2006 INFINITI Q45, N/A; Fits 2003-2006 Nissan 350Z, N/A; Fits 2004 INFINITI Q45, N/A; Fits 2003-2004 Nissan Pathfinder, N/A. Follow factory service procedures for sensor location, connector inspection, and torque specifications.

Quality Assurance

Motorad manufactures this knock sensor in ISO TS16949 facilities and designs it to meet or exceed OEM specifications. The 1KS1029 is engineered for accurate engine-condition input to the ECM across the listed Mazda, Subaru, INFINITI, and Nissan applications.