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Old 11-06-2017, 07:22 PM   #15
Formula 5000 Driver
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Drives: 2011 GTi 2.0T
Join Date: Dec 2014
Location: New Jersey
Posts: 1,781
Cobb Tuning Boost Leak?

Originally Posted by cinciGTI25 View Post
You probably think I'm being crazy... I'm actually a pretty savvy car guy.

Hard shifts are coming when I'm in DSG mode, not full automatic. When I get up to full boost (15-16 psi) and hit the paddle to shift, it's a very HARD shift, not enough to make the car shake, think more of the clutch engaging hard when shifting. Back when I had a manual, I would liken it to dropping the clutch hard during a shift.

Still not sure that it's not a vacuum leak going to the DV valve that was causing the boost loss, but also wondering about the hard shifts now. Not sure if they are related or concurrent issues.

The car never felt this way before? How new are you to the tune/car? You will experience a slight jar inbetween gears when WOT and DSG. 16psi isnít much but maybe youíre just not used to the power bro?
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Old 11-06-2017, 11:10 PM   #16
Go Kart Newbie
Drives: 2012 GTI 4 Dr DSG
Join Date: Sep 2015
Posts: 27
Post a datalog...?

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2012 CSG GTI, 4 Dr, DSG. Cobb pro-tuned through Stratified. Neuspeed Pflo, Neuspeed catback, GFB DV+, R8 coilpacks
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Old 11-07-2017, 09:40 AM   #17
Passed Driver's Ed
Drives: 2013 GTI
Join Date: Nov 2016
Location: Cincinnati
Posts: 14
I've had the tune on the car for about a year - never have experienced the transmission issue before - this is a new one to me.

I'll get the car warmed up today and take it out to get a data log, as well.

Gremlins... I'm thinking gremlins...
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boost, boost leak, boost question, cobb tuning

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