Motorad 1EC130 Ignition Knock (Detonation) Sensor Harness

Ignition Knock Sensor Harness for GM Applications

Motorad 1EC130 is an ignition knock sensor harness built for GM vehicles that need accurate knock signal transfer to the ECM. It uses a 2-wire layout with a round male end and an oval male end to match the original connection style on listed applications.

Key Features

• Part number: 1EC130
• Ignition knock (detonation) sensor harness for engine management systems
• 2-wire construction with black wire color
• End 1: round connector, male, 2 connectors, bullet terminal type, 1 terminal
• End 2: oval connector, male, 1 connector, blade terminal type, 2 terminals
• Built to meet or exceed OEM specifications
• Manufactured in ISO TS16949 facilities

Detailed Description

Motorad 1EC130 is designed for vehicles that rely on a knock sensor circuit to send engine vibration data to the ECM for ignition timing control. The harness supports accurate signal transfer across a wide range of engine knock frequencies, helping the control module interpret detonation events correctly. This makes it a direct-fit service part for many Chevrolet, GMC, Cadillac, Buick, Pontiac, Hummer, and Corvette applications listed below. This part cross-references GM OE-style numbers such as 12575869 and 12601822 for the same application.

Fits 1998-2004 Chevrolet Corvette, N/A. Fits 1998-2002 Chevrolet Camaro, N/A. Fits 1998-2002 Pontiac Firebird, N/A. Fits 2000-2006 Chevrolet Tahoe, N/A. Fits 2000-2006 GMC Yukon, N/A. Fits 2003-2007 Chevrolet Express 1500, N/A. Fits 2003-2007 GMC Savana 2500, N/A. Fits 2007 Chevrolet Silverado 1500 Classic, N/A. Fits 2007 GMC Sierra 2500 HD Classic, N/A.

Common Problems This Part Can Address

• Knock sensor circuit fault codes
• Intermittent or unstable ignition timing control
• Damaged, brittle, or corroded sensor wiring
• Poor electrical connection at the knock sensor harness
• Signal loss between the knock sensor and ECM

Installation Notes and Tips

Verify connector shape, terminal style, and wire routing against the original harness before installation. Inspect nearby wiring, sensor connectors, and mounting points for heat damage or corrosion, since knock sensor circuits are sensitive to poor connections. Confirm fitment by year, make, and model before ordering, especially on Chevrolet Silverado 1500, GMC Sierra 1500, and Cadillac Escalade applications.

Quality Assurance

Motorad designs this harness to meet or exceed OEM specifications and manufactures it in ISO TS16949-certified facilities for controlled production and consistent fitment.