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this sensor has a piezoelectric device that creates its own voltage when it gets shaken.
this voltage gets sent to the ecu which will change the timing to stop the knock from happening.
This sensor has 2 pins (earth and a 5 volt input). it doesn't matter which pin is used.
i put an oscilloscope on these pins and knocked the sensor on the table, this is the wave form picture i recored.
(This sensor has 2 pins (earth and a 5 volt input). it doesn't matter which pin is used.)
ReplyDeleteIt does not have a 5v input but is a voltage out, the voltage depends on the severity of the knock