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Posts Tagged: test a knock sensor

Test a Knock Sensor: Step-by-Step Guide

Test a knock sensor yourself If you have a check engine light and a knock sensor code, the cause can be a bad knock sensor, or an issue with the knock sensor wiring or electrical connector. You can test the knock sensor yourself. Start by checking the condition of the wiring harness and electrical connector. Feel the wire for signs of an open, or rodent damage. Remove the connector from the sensor and check for corrosion. If the wiring looks good, move on to the bias voltage test Test the … Read More

You can test knock sensor yourself

How to test a knock sensor The testing procedure for knock sensor depends on the type of knock sensor used by the carmaker. There are 3 types of knock sensors • Inductive resonant knock sensor • piezoelectric non-resonant sensors. • Piezoelectric resonant knock sensor Initial knock sensor testing Test the knock sensor resistance Using a multimeter, touch one probe to the connector on the knock sensor and the other to a metal portion of the body of the sensor. Read the resistance and compare to carmaker specs. If the resistance … Read More


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