Motorad 1KS1078 Ignition Knock (Detonation) Sensor

Honda S2000 Knock Sensor Replacement

Motorad 1KS1078 is an ignition knock sensor for the 2000-2005 Honda S2000. It monitors engine knock frequencies and sends accurate signal data to the ECM so ignition timing can be adjusted as needed.

• Fits 2000-2005 Honda S2000
• Ignition knock (detonation) sensor for engine timing control
• Uses piezoceramic sensing elements built to tight tolerances
• Blade terminal with female square connector shape
• Threaded end diameter: 10.0
• Length: 1.87 in. / 47.50 mm
• Terminal quantity: 1
• Wiring harness included: No
• Mounting hardware included: No

Detailed Product Overview

The Motorad 1KS1078 knock sensor is built to detect a broad range of detonation frequencies and relay that information to the engine control module for precise spark timing adjustments. For Honda S2000 owners searching for a direct-fit knock sensor replacement, 1KS1078 is engineered to meet or exceed OEM specifications while maintaining consistent signal accuracy and durability.

This part cross-references Standard Ignition KS138 for the same application. It is also listed under interchange references used for the same Honda S2000 fitment, including OE-style replacement numbers such as 30530PCX003.

Common Symptoms This Part May Address

• Check engine light related to knock sensor circuit faults
• Audible spark knock or detonation under load
• Incorrect ignition timing caused by inaccurate sensor input
• Reduced engine performance from ECM timing correction
• Driveability issues tied to failed or aging knock sensor signal output

Installation Notes and Tips

Confirm connector style, threaded end diameter, and sensor length before installation. On the Honda S2000, the sensor mounts to the engine and connects through a female square-style electrical connector with a blade terminal design. Inspect the harness and connector for corrosion or damage before replacing the sensor, and follow the vehicle service procedure for torque and location details.

Quality Assurance

Motorad designs this knock sensor to use high-quality piezoceramic elements and tight manufacturing tolerances for accurate engine condition feedback. The 1KS1078 is intended to meet OEM-level expectations for signal response and durability on 2000-2005 Honda S2000 applications.