Genuine 8961520010 Toyota Ignition Knock Detonation Sensor

The Genuine 8961520010 ignition knock sensor is an original equipment Toyota component designed to detect engine detonation and pre-ignition conditions. This sensor monitors engine vibrations and acoustic frequencies associated with abnormal combustion, sending real-time signals to the engine control module (ECM) to adjust ignition timing and prevent engine damage.

Key Features:

• Direct OEM replacement for Toyota part number 89615-20010
• Piezoelectric sensor technology for accurate knock detection
• Helps optimize engine performance and fuel efficiency
• Prevents engine damage from detonation and pinging
• Designed to meet Toyota's strict quality and durability standards

When the knock sensor detects abnormal combustion patterns, it signals the ECM to retard ignition timing, protecting engine components from excessive heat and pressure. A faulty knock sensor can trigger check engine lights, reduce performance, cause poor fuel economy, and potentially allow engine-damaging detonation to occur unchecked.