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Knock Sensor

the knock sensor is located on the engine block or on the cylinder head or intake the manifold. The main function of this sensor is to sense all the vibrations that causes by the engine knock. It used as PCM for this signal to change the ignition time.

 

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The knock sensor is extremely damaging. The manufacturers in recent has sensor detect onset of knock and protect the engine from the knocking through the commands from the ECU. It is a zirconium that crystal detect the vibrations emanate from the engine. It also passes an electronic e signals back to the ECU out of the computer of the car. It is typically the retarded to stop the engine knocking. The knock sensors more advanced the pre-knock sensors. It allows the manufacturers to run the engine with a higher compression ratio. In addition, a more advanced ignition timing that would otherwise have been possible. This will increases the engine efficiency and power ratio. The knock sensor response the spark knocks that ceases by the pre-detonation of the fuel out air mixture. The flame moves out from the spark plug has ignition point. The pressure waves in the chambers, crash the piston walls to sound known as ping. It has caused due to the hot carbon deposited on the piston head that raise the compression on it. The knock sensor comprised of the piezoelectric materials. The computers always monitor the voltages and an irregularity scans detected. The computer will correct the timing of the engine and triggers the codes in vehicles.

 

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