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Big differences between M6 and A4 closed loop fueling?

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Old 04-25-2005, 08:32 PM
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Default Big differences between M6 and A4 closed loop fueling?

I am looking over some BINs and I am noticing BIG differenced between the tables for closed loop fueling between M6s abd A4s on the same vehicles in the same years. Why would there be differences in fueling requirements between A4s and M6s?
Old 04-26-2005, 12:57 PM
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Bear with me because I am VERY new to tuning (just started yesterday). I am thinking that fueling requirements under part-throttle conditions for an A4 would be different at all points where the converter was unlocked since the car wouldn't be under as much load for any given RPM.
Old 04-26-2005, 01:10 PM
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Just based on speculation, I'm going to have to agree with LS1sounds. The load on my car with the A4 and 3800 stall was very minimal at 2000 RPM, where as with the M6 I know I've been putting considerably more load on it in the same range.

If you see my other thread, I think it was enough of a difference to make my O2's go bad. I should be able to verify or disprove that one tonight though just by their appearance.
Old 04-26-2005, 04:57 PM
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Interesting. I will have to make some more comparisons. I had never heard that idea. Any other thoughts?




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