Genuine 8961552030 Toyota Ignition Knock Detonation Sensor

The Genuine 8961552030 is an OEM ignition knock sensor (also known as a detonation sensor) designed specifically for Toyota vehicles. This critical engine management component monitors abnormal combustion activity by detecting the vibrations and pressure waves that occur when engine knock or detonation is present.

Key Features:

• Original Equipment Manufacturer (OEM) part ensuring exact fit and factory specifications
• Detects pre-ignition and detonation to protect engine components from damage
• Sends real-time signals to the engine control unit (ECU) for timing adjustments
• Helps optimize fuel efficiency and engine performance
• Direct replacement for Toyota part number 89615-52030

The knock sensor plays a vital role in modern engine management systems by allowing the ECU to retard ignition timing when knock is detected, preventing potentially catastrophic engine damage. When this sensor fails, you may experience reduced performance, poor fuel economy, engine pinging, or an illuminated check engine light. Installing a genuine Toyota replacement ensures reliable operation and proper communication with your vehicle's computer system.