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04-15-2007, 11:41 PM
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#2 |
  
Drives: 2005 Scion xB Join Date: Nov 2006
Location: The Black Hills of South Dakota
Posts: 1,059
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Sounds like BS to me. A knock sensor measures just that, knock, not engine timing. Adjusting timing can net gains on older engines, but, our engines have variable valve timing (VVTi). I don't believe it's adjustable. I'm not 100% sure, but I CAN tell you the knock sensor and A/C compressor hole (If that even exists???) have nothing to do with timing.
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