Walker 242-1342 Ignition Knock (Detonation) Sensor - Rear

Walker 242-1342 Knock Sensor Overview

Walker 242-1342 is an OE replacement ignition knock sensor built to monitor engine vibration and detect detonation events. It is engineered for direct replacement in applications such as the 2015-2017 Kia K900 rear position and the 2011-2016 Hyundai Equus, where accurate knock detection is critical for ignition control.

Walker Products Sensor Only line focuses on direct-fit replacement sensors that match factory electrical and mounting requirements. This part number, 242-1342, uses a factory-style female connector with a spade terminal layout for straightforward integration into the original engine harness.

Key Features

• Ignition knock (detonation) sensor for engine vibration monitoring
• OE replacement design with matched frequency range, sensitivity, and electrical output
• Factory-style oblong connector with 1 connector, 2 terminals
• Female connector gender with male terminal gender and spade terminal type
• Built with heat- and oil-resistant materials for engine bay conditions
• Direct-fit replacement for select Kia K900 and Hyundai Equus applications

Detailed Product Description

Walker 242-1342 is designed to detect spark knock by reading engine vibration at the block or cylinder head and sending the signal to the ECU for real-time ignition timing correction. In the 2015-2017 Kia K900 rear application and the 2011-2016 Hyundai Equus, this sensor helps the engine management system respond quickly to detonation so timing can be adjusted before drivability or engine damage issues develop. The Sensor Only product line is focused on OE-style replacement fitment, making this part number 242-1342 a direct option when the original knock sensor has failed or is triggering a fault code.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues This Part Can Address

• Knock sensor fault codes such as P0325 or P0330
• Erratic ignition timing caused by inaccurate knock detection
• Reduced fuel economy from improper spark control
• Engine pinging or detonation-related drivability concerns
• Loss of factory knock sensor signal on select Kia K900 and Hyundai Equus vehicles

Installation Notes and Tips

Install Walker 242-1342 in the original threaded sensor location and verify the connector matches the factory harness before installation. Clean the mounting surface and inspect the wiring for heat damage, corrosion, or oil contamination that could affect signal quality. For the Hyundai Equus and Kia K900, confirm the rear sensor position and engine-specific application before replacement.

Quality Assurance

Walker knock sensors are built to OE specifications for fit, sensitivity, and electrical output, with materials selected to withstand heat and oil exposure in engine-mounted locations. The Sensor Only line is intended to restore factory-style knock detection performance on supported applications.