The Walker Products Ignition Knock (Detonation) Sensor (part number 242-1099) is a direct-fit replacement for 1985-2006 Audi and Volkswagen vehicles with 2.3L, 1.8L, and 2.0L engines. Walker Products Knock Sensors are OE Replacement components that detect engine detonation to help the ECU adjust timing and prevent internal engine damage.
Features:
- Built for Harsh Environments:Â Engineered to resist heat, vibration, and oil exposure for long-lasting signal reliability.
- Exact OE Fit: Installs directly into original mounting locations using factory connectors and threads—no modifications required.
- OE Replacement Sensitivity:Â Calibrated to match factory frequency response and output for seamless ECU integration and spark control.
- Detects Engine Knock:Â Monitors vibration frequencies to detect detonation and prevent pre-ignition engine damage.
- Restores Ignition Timing Accuracy:Â Supports optimal fuel efficiency, performance, and emissions by correcting spark advance during knock conditions.
Specifications:
| Number of Terminals | 3 |
| Connector Type | Blade |
| Connector Shape | Rectangle |
| Connector Gender | Male |
| Terminal Gender | Female |
Fits: 1985-2006 Audi and Volkswagen models including 100, 100 Quattro, 4000, 5000, 5000 Quattro, 80, 90, 90 Quattro and more — 2.3L, 1.8L, and 2.0L engines.
Confirm the year, make, model, and engine against your vehicle before ordering. Full application data is shown in the fitment lookup on this page.
Interchanges With: Audi 054905377A, MTE-THOMSON 7017, Echlin DKS502, NTK ID0090, General Motors 93203180, Standard Import 19504, Meat & Doria 87351, Wells SU4002 and 23 more
WARNING: This product can expose you to chemicals, including lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm.
