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help me find my knock issue

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Old Oct 13, 2016 | 04:10 PM
  #21  
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Originally Posted by madmann26
1. You're not truly in SD mode. Unless 0103 code generates, it's not true SD.

2. Unless you're running leaded gas or this is an all out race car, turn them back on. You DO want the o2's on because they control fueling at part-throttle. With them off, there is no correcting of the fuel trims. If it runs leans, it's lean and the pcm can't compensate for it.

3. I understand the MAP values now.
I get turning them back on but do I want them on for tuning the VE. If I turn them back on won't it skew my afr err histogram ?
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Old Oct 13, 2016 | 04:27 PM
  #22  
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http://www.hptuners.com/help/vcm_editor_tuning_how_to_user_sd.htm

That's the guide I was using and why I have STFT turned off
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