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Old 06-02-2014, 10:51 AM   #106
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Moving this to the "Tech how to section"
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Old 06-02-2014, 11:09 AM   #107
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So the verdict is, for example, I'll need to pull the fuse on my '13 every few weeks?

When I first loaded my MPT tune, I was disappointed. Days later the car seemed to run better. MPT said that the car will have a relearn period. From my experience id say they were right. So if I pull the fuse I'll have to go through that again. Hmmmmm. Not sure what to do.
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Old 06-02-2014, 11:13 AM   #108
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I can only speak for BAMA but my SCF tuner has a "reset KAM" option and this clears it out also. ALL tuners do relearn over time so after allot of questions and research I'm going to do every other Friday to stay consistent. Really only needs to be every 3-4 weeks though. I notice that I like it best between days 2 and 15
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Old 06-03-2014, 06:03 AM   #109
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Quote:
Originally Posted by sguevara View Post
So the verdict is, for example, I'll need to pull the fuse on my '13 every few weeks?

When I first loaded my MPT tune, I was disappointed. Days later the car seemed to run better. MPT said that the car will have a relearn period. From my experience id say they were right. So if I pull the fuse I'll have to go through that again. Hmmmmm. Not sure what to do.
Fuse 47 has no effect on a loaded tune. It clears the adaptive learning for the automatic transmission.
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Old 06-03-2014, 06:06 AM   #110
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Bucko! Thank you for the reply. So what you are saying is that I shouldn't worry about pulling this fuse? That would be great if I don't have to band aide my costly investment.
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Old 06-03-2014, 06:18 AM   #111
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Originally Posted by sguevara View Post
Bucko! Thank you for the reply. So what you are saying is that I shouldn't worry about pulling this fuse? That would be great if I don't have to band aide my costly investment.
Fuse 47 only effects those with an automatic transmission. If your driving is mostly city stop and go, your transmission "learns" these shift points. Then if you venture out to the highway and do some "sprited" driving, the shift points will seem sluggish for awhile, untill these new shift points are learned. To force the PCM/ECU to re-learn quicker, pulling fuse 47 forces the automatic transmission into an immediate "re-learn" mode.

Installing a relay that removes power to to fuse 47 each time the car is shut off/restarted is a simpler way to have the shift points cleared without having to pull the fuse.

For most, this adaptive learning is a good thing, as it helps gain some fuel economy. If you are perhaps after any minute performance gains, clearing the adaptive learning could help.
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Old 06-03-2014, 06:21 AM   #112
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Oh! Gotcha. I have an auto and do mostly city driving. But I'll build TedG's cable and use that.

Thanks bro!
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Old 07-23-2014, 01:04 PM   #113
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Could someone post up a picture of fuse 47 and where it is located in the engine bay? I linked this thread to my write-up on Bama vs. MPT tunes and the fuse 47 pull has came up. Instead of re-explaining it over and over, if someone could throw up a good picture of which exactly is the fuse to pull that would be great, I'm having a hard time describing it.
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Old 07-23-2014, 01:18 PM   #114
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Someone had posted this diagram earlier this year. Is this what you are looking for? Click image for larger version

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Old 07-23-2014, 01:27 PM   #115
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Here is the article that the genius wrote:

http://www.paddedwall.org/2012mustang/Transmission.aspx

I will be building mine soon!


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Old 07-23-2014, 01:36 PM   #116
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Awesome, thank you! I've been looking all over the net for that picture. If you don't do the relay you just pull the fuse for 10 minutes then put it back in. It's the one that the yellow clips are on, correct?


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Old 07-23-2014, 01:45 PM   #117
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Yes it is. I usually pull it for 15 mins every two weeks. Once I build my cable I'll be good to go!!


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Old 07-23-2014, 01:53 PM   #118
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Quote:
Originally Posted by sguevara View Post
Yes it is. I usually pull it for 15 mins every two weeks. Once I build my cable I'll be good to go!!


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Thanks so much man, it's linked to my write up so people will see this instantly!


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Old 07-23-2014, 02:50 PM   #119
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We are all fortunate to have great contributors and compilers such as yourself!!


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Old 10-04-2014, 05:43 PM   #120
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I have a 2014 v6 with the MT. pulling fuse 47 has had NO discernible effect for me. I went so far as to build the relay and ran it for over a month. pulled it out again and ran another month or so and I can't feel any difference. I run MPT 91 performance. I live in Wyoming where there is very little traffic and my driving is somewhat spirited every day, maybe that is a factor.
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Old 10-04-2014, 06:53 PM   #121
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Quote:
Originally Posted by Boss227 View Post
I have a 2014 v6 with the MT. pulling fuse 47 has had NO discernible effect for me. I went so far as to build the relay and ran it for over a month. pulled it out again and ran another month or so and I can't feel any difference. I run MPT 91 performance. I live in Wyoming where there is very little traffic and my driving is somewhat spirited every day, maybe that is a factor.
Pulling fuse affects the adaptive shifting in the Automatic transmission. No affect on the MT.
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Old 10-04-2014, 07:00 PM   #122
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Pulling fuse affects the adaptive shifting in the Automatic transmission. No affect on the MT.
I realize that, however several MT guys have mentioned that it affects them as well.
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Old 10-04-2014, 07:37 PM   #123
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It cuts the power to the ecu right? Wouldn't that reset it and cause it to relearn as well?
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Old 10-04-2014, 07:42 PM   #124
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I realize that, however several MT guys have mentioned that it affects them as well.
Placebo effect

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Old 10-04-2014, 08:12 PM   #125
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Placebo effect

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Like "cold air intakes"?
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Old 10-04-2014, 08:39 PM   #126
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At least CAIs sound cool haha

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Old 11-09-2014, 05:27 PM   #127
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+1, IMO data logging won't in any way solve the issue. I drive a manual so its obviously not a tranny issue. The absolute best way to describe it is as soon as you load a tune and start the car for the first time, when you rev the motor a little before you start driving and you can feel instant and lightening quick throttle response, well if I drive for a few days and then start the car up, the lightening quick, instant throttle response that was present the moment after the tune was installed is gone and back to muddy delayed OEM throttle response. Grrrr. BTW just loaded up my 91h tune and is not nearly as good as the 93r. : ( If I can just get the tunes to stick I'd be super happy, but all that I feel is frustration, and its not directed at Bama because others with Mpt have experienced the same issue, it purely at the situation. I'm not a fan of having to remove battery cables every few days to reset. On a similar note after I loaded the 91h tune tonight I was getting, at very low speeds, surges that I originally experienced when I loaded the 93 a few weeks back after I had the 3.73s done. After about 25 minutes of driving the surging stopped and was driving fine so there is definitely some computer correcting by our cars.

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I am driving a 2012 AT and have experienced the same issue. Load the tune, runs awesome and a few weeks later iys dulled down.





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Are you 100% sure? I've got a 2012 auto and it started feeling sluggish after a while. Did the fuse #47 trick and it brought it back to life. Are you running a tune, and if so, what tune?


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