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Old 06-02-2014, 03:19 PM   #1
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Shift pressure

Ok so I called bama today because every time it tuned my car it would throw a p0781code and when I return it to stock it goes away ... So what they told me was to lower my pressure and when I went on the tuner it was at 0% so I put it to -5% and so far no code has popped up.. So I was wondering if it's normal running it that way in the negatives percentage?
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Old 06-02-2014, 08:32 PM   #2
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I don't think it would be a problem to run it in the -%.
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Old 06-02-2014, 08:54 PM   #3
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Running negative pressure would make the car completely useless seeing as it wouldn't shift at all. The setting is probably dialing back 5% from whatever the current setting in the tune is.
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Old 06-02-2014, 08:57 PM   #4
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Shift pressure

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Originally Posted by Mile high JDF View Post
Running negative pressure would make the car completely useless seeing as it wouldn't shift at all. The setting is probably dialing back 5% from whatever the current setting in the tune is.

All the shifting pressure in the race tune were at 0 what should I put em at ?
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Old 06-02-2014, 11:39 PM   #5
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Quote:
Originally Posted by Mile high JDF View Post
Running negative pressure would make the car completely useless seeing as it wouldn't shift at all. The setting is probably dialing back 5% from whatever the current setting in the tune is.

Should I do 1-2 10% 2-3 15% 3-4 20%?
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Old 06-02-2014, 11:45 PM   #6
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Quote:
Originally Posted by Mile high JDF View Post
Running negative pressure would make the car completely useless seeing as it wouldn't shift at all. The setting is probably dialing back 5% from whatever the current setting in the tune is.

Should I do 1-2 10% 2-3 15% 3-4 20%?
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Old 06-03-2014, 12:19 AM   #7
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Quote:
Originally Posted by Tangtang2.0 View Post
All the shifting pressure in the race tune were at 0 what should I put em at ?






Quote:
Originally Posted by Tangtang2.0 View Post
Should I do 1-2 10% 2-3 15% 3-4 20%?
No... That's just gonna make your issue worse.

Bama set the shift pressure in their tune, let's just pretend they set it at 75%, when you go in to adjust it yourself the 0% value I means you're currently at the 75% pressure that Bama set the car at and by reducing (-5% ) or increasing the pressure (+5%) you're bumping thay either down to 70% or up to 80% make sense?
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Old 06-03-2014, 08:39 AM   #8
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The percentages are just based from the starting point of the tunes parameters. For example, if the tune's fuel pressure is set to 100psi and you lower it -5%, than your fuel pressure will be reset to 95psi. In other words, the hand held tuner is adjusting from the programed base fuel pressure that Bama has set.

Mile high JDF has the right idea!

Shane
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Old 06-03-2014, 08:59 AM   #9
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Originally Posted by AMShaneLesky View Post
The percentages are just based from the starting point of the tunes parameters. For example, if the tune's fuel pressure is set to 100psi and you lower it -5%, than your fuel pressure will be reset to 95psi. In other words, the hand held tuner is adjusting from the programed base fuel pressure that Bama has set.

Mile high JDF has the right idea!

Shane

So what should I do to fix the problem? I understand what jdf I saying tho.
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Old 06-03-2014, 09:24 AM   #10
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Quote:
Originally Posted by AMShaneLesky View Post
The percentages are just based from the starting point of the tunes parameters. For example, if the tune's fuel pressure is set to 100psi and you lower it -5%, than your fuel pressure will be reset to 95psi. In other words, the hand held tuner is adjusting from the programed base fuel pressure that Bama has set.

Mile high JDF has the right idea!

Shane

So what should I do to fix the problem? I understand what jdf I saying tho.
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Old 06-03-2014, 09:52 AM   #11
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Have them put the shift pressure back to stock and do a j-mod. Problem solved and its easier on your transmission not to mention it will increase overall transmission life expectancy.
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Old 06-03-2014, 03:04 PM   #12
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Originally Posted by Tangtang2.0 View Post
So what should I do to fix the problem? I understand what jdf I saying tho.
It sounds like the Bama Team wants you to keep lowering your shifter pressure until the problems subside. Once you hit that point or negative percentage, contact the Bama Team and they'll calibrate it in your tune.

Shane
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Old 06-03-2014, 07:15 PM   #13
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Quote:
Originally Posted by AMShaneLesky View Post
It sounds like the Bama Team wants you to keep lowering your shifter pressure until the problems subside. Once you hit that point or negative percentage, contact the Bama Team and they'll calibrate it in your tune.



Shane

Ok, so right now it's at -5% ... Is the tune pointless at this point should I return it to stock?
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Old 06-03-2014, 07:17 PM   #14
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He's telling you to keep going down in percentage. Try -10, then -15 until the problem fixes itself or I guess that's what he is telling you. Or demand a refund and go take it to a local dyno tuner.
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Old 06-03-2014, 07:19 PM   #15
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No the problem IS solved when I lowered it to -5% .. The code isn't popping up anymore
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Old 06-03-2014, 07:43 PM   #16
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Then you are probably fine and from what I gather you are supposed to send that info in for Bama to write a new tune? Dunno.
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Old 06-04-2014, 10:51 AM   #17
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Quote:
Originally Posted by Tangtang2.0 View Post
Ok, so right now it's at -5% ... Is the tune pointless at this point should I return it to stock?
If the problem is solved with a 5% reduction, then you should contact Bama and let them know. They'll write you new tunes with the reduced pressure. Then you should be set!

If you like, you can send me a PM with your First/Last name and shipping address and I'll have Bama email you the new tunes. Whichever you prefer!

Shane
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Old 06-04-2014, 11:17 AM   #18
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Quote:
Originally Posted by AMShaneLesky View Post
If the problem is solved with a 5% reduction, then you should contact Bama and let them know. They'll write you new tunes with the reduced pressure. Then you should be set!



If you like, you can send me a PM with your First/Last name and shipping address and I'll have Bama email you the new tunes. Whichever you prefer!



Shane

The problem came back I'll mess around with it some more and then I'll give em a call
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Old 06-04-2014, 12:56 PM   #19
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Quote:
Originally Posted by Tangtang2.0 View Post
The problem came back I'll mess around with it some more and then I'll give em a call
The code is probably set to MIL or second error then. Which means you have go through two drive cycles to see the error every time you clear the CEL. When you're testing, you can just turn the pressure down another 5% and drive it a little, then turn the car off and drive it only a mile or so and then CEL will come back on if the problem is still there. Keep this in mind when you're testing and it will make things go faster, so you don't waste time driving extra miles during the first drive cycle.

Of course, if you need additional assistance let me know!

Shane
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