GPD 1811749 Ignition Knock Sensor

The GPD 1811749 is an ignition knock (detonation) sensor designed as a direct-fit replacement for various Toyota vehicles. This sensor feeds information to the engine control module (ECM) to adjust the ignition timing to avoid off-time cylinder combustion, helping to improve fuel efficiency, reduce emissions, and keep the engine running smoothly.

Key Features:

• Detects engine knocks and is typically mounted on the engine block or cylinder head where it can most easily pick up vibrations caused by engine knocks
• Converts abnormal vibrations into electrical signals sent to the ECM for real-time ignition timing adjustments
• Direct replacement for OEM specifications
• Manufactured by GPD (Global Parts Distributors), a trusted name in automotive aftermarket parts

The knock sensor monitors engine vibrations caused by detonation in internal combustion engines and sends signals to the engine control module (ECM) when the fuel/air mixture detonates prematurely. A failed knock sensor will often have no noticeable symptoms beyond a check engine light or engine ping or knock, but it does cause your vehicle to operate inefficiently and produce higher emissions. Installing a quality replacement knock sensor like the GPD 1811749 helps restore proper engine performance and protects against costly engine damage.