Ford Focus Forum, Ford Focus ST Forum - View Single Post - knock sensor issues
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Old 04-28-2011, 01:58 PM   #37
BowerR64
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Quote:
Originally Posted by Roushturboedzx3 View Post
My knock sensor has been turned off for over a year now. There not accurate. I have logs of it picking up noise from the wastegate and it would pull 2degrees. Also when I would shift fast it would think it was knock and pull 5 degrees then slowly put it back in. As long as your tuner knows what he is doing there should be no problems. Also I fill up at any gas station. Hess, Bp, sans club. Etc.
How do you have it turned off?

I wondered about that myself, when i started reading about what they are and how they work. Then listening to sound clips i must say it sounded a little iffy to me. I then read where some one said they use some kind of audio filtering or somthing to single out the knock. It makes a little more sence till the OP said they are only $30. for the sensor now im starting to wonder.

If i raced my car i dont think ide want one pulling timming out but for how im using my car ill leave it alone.
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