Walker 242-1077 Ignition Knock (Detonation) Sensor

Walker Ignition Knock Sensor 242-1077

Walker Products 242-1077 is an ignition knock (detonation) sensor for select Hyundai and Kia applications. It is built with a wiring harness included and uses a 2-terminal blade connection to support accurate engine knock signal input for the vehicle’s engine management system.

Walker Products has supplied fuel system and engine sensor components since 1946, with manufacturing and engineering support focused on OE-style specifications and application accuracy. The Walker Products line includes engine management parts such as sensors, injectors, and related components for import and domestic vehicles.

Key Features

• Ignition knock (detonation) sensor for engine timing control
• Part number 242-1077
• Fits 2006-2011 Hyundai Accent
• Fits 2006-2011 Kia Rio
• Fits 2006-2011 Kia Rio5
• Wiring harness included
• 1 connector with oblong shape
• Female connector with male blade terminals
• 2 terminal design
• Length: 265.0000; wiring harness length: 181.0000

Detailed Description

Walker Products 242-1077 is an engine knock sensor used to monitor detonation and send signal data to the engine control system. On select Hyundai Accent, Kia Rio, and Kia Rio5 models from 2006-2011, this sensor supports proper ignition timing response by helping the ECU react to abnormal combustion events. The connector layout, blade terminals, and included harness are specified for the listed applications, making this a direct-fit service part for those vehicles. This part cross-references Standard Ignition KS298 for the same application.

What It Helps Address

• Knock sensor fault codes
• Erratic ignition timing caused by detonation signal loss
• Check engine light related to knock sensor circuit issues
• Rough engine operation tied to incorrect knock detection
• Wiring or connector replacement needs at the sensor location

Installation Notes and Tips

Verify connector shape, terminal count, and harness length against the original part before installation. Inspect the mounting surface and surrounding wiring for damage, corrosion, or heat-related wear before connecting the new sensor. Use the vehicle service procedure for torque and routing requirements, and confirm the sensor is installed in the correct location for the listed Hyundai Accent, Kia Rio, or Kia Rio5 application.

Quality Assurance

Walker Products manufactures engine sensor components to meet or exceed OEM standards and specifications. The company is ISO 9001/IATF16949 certified and supports product development with in-house manufacturing, engineering, and technical documentation for application accuracy.