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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Procede V4 beta release (6at shifting when cold)



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      08-03-2010, 11:54 AM   #1
OpenFlash
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Exclamation Procede V4 beta release (6at shifting when cold)

Hi guys,
A few of you 6at guys experienced some degree of rough shifting when the engine/transmission was cold (ie, 1st thing in the morning). But it went away once everything warmed up. I have a simple fix that should address this. It's a firmware update that I'd like to gave you guys try. If you guys can confirm that the issue is solved, I can incorporate the fix in all future updates.

If you have this issue, please email me at shiv@vishnutuning.com and put "6at cold shifting" in the subject line. I'll create a little mailing list and send out the update (along with necessary info) late tonight. This only applies to 6at (and perhaps 7DCT) guys so 6mt guys need not apply.

Once this update is tested, we can release some fun stuff for everyone.

Cheers
Shiv
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      08-03-2010, 12:20 PM   #2
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I never notice. What are we looking for?
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      08-03-2010, 12:33 PM   #3
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Quote:
Originally Posted by AltecBX View Post
I never notice. What are we looking for?
If you never noticed, don't worry about it. I really only want to test this on people who have this issue. Getting feedback from those who haven't isn't going to be helpful at this time

Shiv
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      08-03-2010, 01:55 PM   #4
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never had this issue. bumping the thread to get some testers so we can get the good stuff...
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      08-03-2010, 02:33 PM   #5
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I've only received 2 emails so far. I'll hold out until midnight for more folks
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      08-03-2010, 03:15 PM   #6
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Email sent!
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      08-03-2010, 08:42 PM   #7
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email sent
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      08-03-2010, 09:07 PM   #8
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Shiv - what does this change impact for those who do not have the rough shifting issue?
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      08-03-2010, 09:10 PM   #9
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Quote:
Originally Posted by alextremo View Post
Shiv - what does this change impact for those who do not have the rough shifting issue?
No impact whatsoever. I just want to confirm that this update solves those isolated issues before we go forward. If it does (and I expect it will), we'll just build up this firmware version for the next steps.

Shiv
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      08-04-2010, 05:07 AM   #10
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Email sent.
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      08-04-2010, 11:17 AM   #11
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Shiv what is this future fun stuff that you mentioned.
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      08-04-2010, 12:54 PM   #12
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Quote:
Originally Posted by ridin135 View Post
Shiv what is this future fun stuff that you mentioned.
Automatic compensation for wastegate stiffness. More on that tomorrow or Friday

Back on topic... a few more emails sent out this morning regarding the cold shifts. Pls provide feedback directly to me via email

Cheers
shiv
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      08-04-2010, 01:12 PM   #13
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Did you send 6mt beta maps out too? I never got one.
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      08-04-2010, 01:14 PM   #14
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Quote:
Originally Posted by rooster3.0 View Post
Did you send 6mt beta maps out too? I never got one.
Only for 6AT as per the thread topic.
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