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Go Back   TDIClub Forums > VW TDI Discussion Areas > Dieselgate - VW Group Emission Scandal

Dieselgate - VW Group Emission Scandal Discussion around the VW Dieselgate Emissions scandal. Details and news updates can be viewed here: http://forums.tdiclub.com/showthread.php?goto=newpost&t=448336 This forum is a work in progress depending on requirements, usage, etc.

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Old September 22nd, 2019, 18:45   #1
nhraracer90
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Join Date: Dec 2012
Location: WV
Default Turbo lag and trans downshifting

Hello! I have noticed that after the “fix” the turbo lag is terrible now lol. Which that doesn’t bother me much but the other problem I have is, the car doesn’t like to downshift. Say if I slow down to go around a turn, I press the gas pedal halfway down or so and it won’t downshift. Then I push it further and it will aggressively downshift two or 3 gears. Anyone else experiencing anything like this? I have a 2010 Jetta

Thanks!
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Old September 23rd, 2019, 09:23   #2
flargabarg
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Have you done a throttle adaption reset yet?
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Old September 24th, 2019, 08:05   #3
nhraracer90
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No I have not. Is that something the dealer has to do?
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Old September 24th, 2019, 11:18   #4
flargabarg
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Nope. It's a super easy first step when the adaptive throttle or shifting is acting up. Press the accelerator pedal all the way to the floor. Turn on ignition but do not start the engine. Keep the accelerator pedal pressed for at least 15 seconds. Turn off the ignition. Drive your VW, carefully and allow it to change gears at low RPM for the first 10 minutes.

If it doesn't work you are not out much. It resets some of the learned behavior and can sometimes clear things up.
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Old September 28th, 2019, 19:19   #5
nhraracer90
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Okay so I tried that and it didn’t seem to change anything. Is there anything else to try?
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Old September 30th, 2019, 04:41   #6
Joe Romas
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Fuel Economy: 48.1 mpg bringing it home
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Sure fixed my erratic throttle response.
Thanks flargabarg
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Old September 30th, 2019, 11:04   #7
flargabarg
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If that didn't do it you probably need VCDS or the dealer to look at it. Sorry.
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