Bosch 0261231118 Ignition Knock (Detonation) Sensor

Bosch Knock Sensor for Porsche 911

This Bosch ignition knock sensor helps monitor engine detonation so the engine control system can respond quickly under load. It is a direct-fit OE-quality replacement for select Porsche 911 models and supports stable combustion control, smoother operation, and reduced fuel consumption.

Key Features

• Bosch OE quality ignition knock (detonation) sensor
• Helps detect abnormal combustion for engine protection
• Supports fuel consumption reduction up to 9% when the engine management system can optimize timing
• Direct replacement for Porsche 911 applications listed below
• Part number 0261231118 for accurate identification

Product Line Details

Bosch ignition knock sensors are built to OE quality standards for precise signal input to the engine management system. In Porsche 911 applications, that signal helps the ECU adjust ignition timing to reduce knock-related stress and maintain efficient engine operation. This part number, 0261231118, is also referenced for interchange number 99360614100.

Vehicle Fitment

• Fits 1995-1998 Porsche 911, N/A
• Fits 1994 Porsche 911, N/A, Body 993

What It Helps Address

• Engine knock or detonation-related timing correction issues
• Reduced engine protection response from a faulty sensor signal
• Check engine light conditions tied to knock sensor faults
• Rough running or hesitation under load caused by incorrect knock detection
• Loss of efficiency when ignition timing cannot be optimized

Installation Notes and Tips

Verify the connector style and mounting location against the original sensor before installation. For Porsche 911 knock sensor replacement, inspect the harness and surrounding engine surfaces for damage, corrosion, or contamination that could affect signal quality. Confirm the part number 0261231118 matches the application before final installation.

Quality Assurance

Bosch OE-quality construction supports consistent sensor output and dependable engine management input. This part is built for the listed Porsche 911 fitments and is identified by Bosch part number 0261231118.