Walker 242-1139 Ignition Knock (Detonation) Sensor

Overview of Walker Ignition Knock Sensor 242-1139

The Walker Products Ignition Knock (Detonation) Sensor 242-1139 is designed for precise detection of engine knock in select Audi and Volkswagen models. This sensor helps maintain optimal engine performance by monitoring detonation and sending accurate signals to the engine control unit.

• Compatible with Audi A4, A4 Quattro, A6, A6 Quattro, Allroad Quattro, S4, and Volkswagen Passat
• Part number 242-1139 ensures exact fit and function
• Monitors engine knock to prevent damage and improve efficiency
• Engineered for reliable signal transmission to the ECU
• Walker Products brand line known for emission control sensor quality

Detailed Product Description

This ignition knock sensor from Walker Products is specifically engineered to detect detonation or knocking in the engine combustion chamber. By accurately sensing vibrations caused by knock, the sensor sends real-time data to the vehicle’s engine control unit (ECU), allowing it to adjust ignition timing and fuel delivery. The 242-1139 sensor is compatible with a range of Audi models including the A4, A4 Quattro, A6, A6 Quattro, Allroad Quattro, and S4, as well as the Volkswagen Passat. This ensures proper fitment and reliable operation within these vehicles’ emission control systems.

Walker Products is a recognized brand line specializing in emission control components, including sensors that meet OEM specifications. Their focus on precision and durability supports the performance and longevity of emission-related parts like the ignition knock sensor.

Common Applications and Issues Addressed

• Detects engine knocking or detonation to prevent potential engine damage
• Helps maintain optimal ignition timing for improved fuel efficiency
• Supports emission control by ensuring proper combustion monitoring
• Reduces risk of engine misfire and rough idling
• Prevents check engine light triggers related to knock sensor faults

Installation Notes and Tips

• Ensure compatibility with your specific Audi or Volkswagen model before installation
• Disconnect the battery prior to sensor replacement to avoid electrical issues
• Use proper torque specifications when securing the sensor to avoid damage
• Inspect wiring and connectors for corrosion or damage during installation
• Clear any diagnostic trouble codes after installation to reset the ECU

Quality Assurance and Warranty

The Walker Products ignition knock sensor 242-1139 is manufactured to meet or exceed OEM standards for emission control sensors. While specific warranty details may vary, Walker Products typically offers coverage against defects in materials and workmanship to ensure reliability and customer confidence.