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Originally Posted by 93Cobra#2771
Decel fuel shutoff is actually disabled on A9* family of processors. And I don't think that would be causing your issue. You need to up your fuel tip-in, methinks...
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The A9L does effectively disable the DFSO by extending the time intervals til activation to 31 seconds (I think?). I have not checked on the other A9* series stuff, but would guess it to be more of the same.
The X3Z is actually quite aggressive in cutting fuel on decel, probably for the reasons you stated above - Roush having to pass emissions on the first go.
I had very little luck messing with the tip-in stuff.
The DFSO settings did make a major difference though.
In my mind there is a difference between lean on tip-in, and remaining lean after a short closed throttle decel or a shift.
It seems that it is fairly common to have issues with lean on tip-in, but very few have had to mess with the DFSO settings.
I could be wrong though, I still feel like a noob with CalEdit.
jason