Thread: knock sensor
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John at J&S John at J&S is offline
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Join Date: Dec 2005
Posts: 147
Here is a video of one installed on an F150 Lightning. Forget that it's not your favorite engine, just watch what individual cylinder knock control can do to the timing. In the last frame of the clip, cylinder #5 is retarded 8. No others are retarded. No tuner can do that.

A pro racer told me that he installs a plug three heat ranges colder in #5. This tends to confim that it's not engine noise that causes the activity seen.

If for some reason the link doesn't work, google "knock controller demo".
Old 07-07-2009, 01:57 AM
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