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O2 Swing Point and Boundaries

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Old Aug 25, 2021 | 09:10 AM
  #1  
Sharp38's Avatar
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Car: 1938 Chevrolet
Engine: ZZ 502
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O2 Swing Point and Boundaries

I was told in a different thread that my O2 swing points and boundaries were super rich. Attached are the settings. From what I have read on other threads, they are way high and narrow.

I do not understand the implications of the settings on AFR tuning.

Comments and / or explanations would be appreciated.
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Old Aug 25, 2021 | 02:49 PM
  #2  
RBob's Avatar
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From: Chasing Electrons
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Re: O2 Swing Point and Boundaries

Yes, those O2 swing points are high and will cause a richer then normal AFR. But not having to worry about cat-cons makes a difference. Here is some light (!?) reading on what those tables do:

https://www.thirdgen.org/forums/diy-...-contants.html
https://www.thirdgen.org/forums/diy-...ng-points.html

RBob.
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