AF Learning 1 - Subaru WRX Forum
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#1 Old 01-25-2014, 01:45 PM
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AF Learning 1

So I've been playing with my new accessport lately and had a question. I am aware that Cobb suggests up to +/- 8% for the third gear pull to redline, but what about under other circumstances? For example, I was cruising the other day @ 75/80mph and I would hit up to 11% +/- for AF Learning 1 during normal hills and traffic flow. Fifth gear mostly, obviously.

Basically my question is, is the +/- 8% guideline for the 3rd gear pull situation only, or as an overall rule of thumb under all circumstances?

I believe that the max correction is +/- 20%, and that you basically want to be as close to 0% as often as possible.

Thanks,
Pete
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#2 Old 01-27-2014, 09:32 AM
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Anyone?
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#3 Old 01-27-2014, 10:30 AM
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Have you looked at Cobb's Access Tuner Race forums? They might have more knowledge on this subject.

Kirt
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"When in doubt...flat out" - Colin McRae
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#4 Old 01-27-2014, 01:32 PM
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i have not, but I will now. Thanks for the guidance.
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#5 Old 01-27-2014, 03:55 PM
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I don't know if this will help you at all, but helped me understand AP a little bit.

https://static.cobbtuning.com/cobbtu...atalogging.pdf
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#6 Old 01-27-2014, 04:38 PM
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Originally Posted by Sub14WRX View Post
I don't know if this will help you at all, but helped me understand AP a little bit.

https://static.cobbtuning.com/cobbtu...atalogging.pdf
Nice link...
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Kirt
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"When in doubt...flat out" - Colin McRae
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#7 Old 01-28-2014, 07:14 PM
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I emailed Cobb directly. They were very helpful. Great company. I wanted to share with the forum their response to my question:

I hope you are enjoying the Accessport on your Subaru! The guideline of +/-8% is specifically for WOT runs. This is to ensure you still have a margin for adjustment (up to the 20% either way you mention) if something out of the ordinary were to happen during those high load events. At other times, when there is little to no load on the car, the fuel trims aren't as important. They will vary greatly especially after any abrupt or severe changes in throttle. A zero correction would be great but it's not really possible in any real world scenario. Don't worry though, the changes you are seeing aren't of any consequence. If you have any other questions, please let me know.
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#8 Old 01-28-2014, 09:47 PM
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Quote:
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Have you looked at Cobb's Access Tuner Race forums? They might have more knowledge on this subject.
Do they still have those kirt? Last time I tried to get on it said they closed them.

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#9 Old 01-28-2014, 10:32 PM
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Do they still have those kirt? Last time I tried to get on it said they closed them.

I haven't looked lately...odd that they'd shut down support forums for ATR. Considering they don't want bugged about self tuning.


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#10 Old 01-28-2014, 10:36 PM
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Maybe were talking about 2 different forums. The one Im talking about is just Cobb tuning forums I think. I don't remember it being ATR specific or having ATR In the name. I could be wrong though. Ill check on it later.

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