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Knock Sensors, Auto Detonation Sensors

The knock sensor is mounted on the engine and it detects high frequency vibrations. These vibrations are a result of detonation in the combustion chamber. The vehicle produces its best power and efficiency as it approaches detonation. The input from the knock sensor lets the computer know when detonation occurs and the computer can run other systems at optimum based on when detonation occurs. It may also assist in timing of the detonation itself. It definitely stops the ignition from firing until the engine stops detonation. The knock sensor is a basic sensor that helps all the components of the engine work together to achieve optimal performance and efficiency. When the systems work together there is good gas mileage, cleaner emissions, and the vehicle gets higher horsepower. When the knock sensor goes bad, lots of systems may suffer. Damage may even be done if the knock sensor is not replaced.

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