What is a knock sensor?

Tiny
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  • 2002 KIA SPECTRA
  • 77,000 MILES
What is a knock sensor?
Saturday, March 23rd, 2013 AT 5:25 AM

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Tiny
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A knock sensor detects vibration in the engine set off by detonation caused by igniting timing problems or other tune related issues, it sends a signal to the ecu to alter ignition timing, when they fail you often have a rattle from the engine on acceleration, this is engine ping due to incorrect timing.
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Saturday, March 23rd, 2013 AT 10:49 AM

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