Transmission question
Thread Starter
Teching In
Joined: Nov 2011
Posts: 23
Likes: 0
From: WA
Transmission question I just bought a 2001 A4 Z28. The car has 73,600 miles on it, and is basically stock. The guy I bought it from said the trans has been reprogrammed with a Power Programmer through the OBD2 port (his words, not mine; he didn't do the mod). The transmission shifts just fine, but has an annoying quality: it shifts into gear HARD. When going from park to OD, it shifts quite hard, and the 1-2 shift is also pretty firm. 2-3, and 3-4/OD are just fine. It just seems a bit aggressive when putting it in gear. Does any of this make sense? Basically I just want to know if this was made possible by programming, or would mechanical tweaks be the only way to make the trans operate like this? I was told by a mechanic that this would not be possible to do using the OBD2 port.
12 Second Club
Joined: Dec 2008
Posts: 319
Likes: 0
From: Richmond,VA
does it have a shift kit, mine shifts a little hard when going from park to drive. I had mine rebuilt and after that it started shifting a little harder. Maybe the program added to much line pressure to the trans
FormerVendor
Joined: Oct 2006
Posts: 3,123
Likes: 3
From: D-F/W
Yes it is possible for someone to go in and increase the PCS amperage and in turn increase line pressure with a tuning device.
If the 1/2 feels harsh but the 2/3 and 3/4 do not then it is possible that there is excessive wear at the 3/4 clutches andthat is why it was programmend that way in the first place... But thats just a guess.
g
If the 1/2 feels harsh but the 2/3 and 3/4 do not then it is possible that there is excessive wear at the 3/4 clutches andthat is why it was programmend that way in the first place... But thats just a guess.
g
Thread Starter
Teching In
Joined: Nov 2011
Posts: 23
Likes: 0
From: WA
Thread Starter
Teching In
Joined: Nov 2011
Posts: 23
Likes: 0
From: WA
Yes it is possible for someone to go in and increase the PCS amperage and in turn increase line pressure with a tuning device.
If the 1/2 feels harsh but the 2/3 and 3/4 do not then it is possible that there is excessive wear at the 3/4 clutches andthat is why it was programmend that way in the first place... But thats just a guess.
g
If the 1/2 feels harsh but the 2/3 and 3/4 do not then it is possible that there is excessive wear at the 3/4 clutches andthat is why it was programmend that way in the first place... But thats just a guess.
g
