tiptronic woes?...please help me!

[B5in]

at first I thought it was either a boost leak or fuel delivery cutting in & out, but all those things have been checked & it is definitely a trans problem. If I am WOT & it gets to around 80mph & switches to 5th gear within a couple seconds it will downshift to 4th then shift back to 5th & repeat over & over


Well I have a 3-program GIAC ECU (stock, pump, & race) and when I am in the "pump/91-93 oct. program" under part throttle & WOT it seems like it's searching for gears & just starts downshifting & upshifting over & over. It doesn't do it in stock program & it does it less in "race/100oct. program"

SO I read that after a ECU swap & throttle adaption you should do the auto-trans adaption. But it didn't seem to be able to do it.

I am using a fully licensed Ross-Tech Release 409-1, is this function only for newer releases of the software?

Here is my car info as well:

2001 Allroad 2.7T w/tiptronic trans

TIA :beer:


Do I need a tip chip? Is it because I have 19's?

car in question in winter mode:

[A62TURBO]

could be a faulty ecu chip if you say it works fine in stock mode. Who did your ecu?

[00s4slvr]

wow i have the same problem... only i have a b5 s4. I have the giac ecu and on Pump performance (93 OCT) mode but when i get to around 138mph my gar does that gear hunt crap from 4th to 5th when in tip mode but if i throw it in drive release the throttle a bit and then push back down it will shift and continue going to whatever... (i only got it up to 158)

[B5in]

could be a faulty ecu chip if you say it works fine in stock mode. Who did your ecu?

All 3 programs are on the same chip

GIAC did the flash & was tested before I even got it & they said that if the flash was corupt the car wouldn't even run

[gunchs4]

sounds like, to me, a torque converter problem. Do you get any tranny codes like torque converter stuck on/off? When my torque converter went, that is what happened. A lot of gear searching because the TC is trying to lock up but it can't. Just my .02.

[A62TURBO]

sounds like, to me, a torque converter problem. Do you get any tranny codes like torque converter stuck on/off? When my torque converter went, that is what happened. A lot of gear searching because the TC is trying to lock up but it can't. Just my .02.

I hear what you're sayin, but if there are no codes for TC then I doubt it.

OP- Do you have trouble at any other speeds??

[B5in]

I installed my boost gauge today & something is wrong, the boost is all over the place. I also put in a ECS N75J valve to see if maybe my N75 valve is bad. Tomorrow I will try & get some videos of my boost and dash gauges so you guys can tell me what you guys think, I have to warn you the gauge isn't mounted yet, I am waiting on a spare left vent that will be it's permanent home, but for now it is "Rigged" to say the least, other than the mounting it is a clean install, I think I maybe have a boost leak

[A62TURBO]

I installed my boost gauge today & something is wrong, the boost is all over the place. I also put in a ECS N75J valve to see if maybe my N75 valve is bad. Tomorrow I will try & get some videos of my boost and dash gauges so you guys can tell me what you guys think, I have to warn you the gauge isn't mounted yet, I am waiting on a spare left vent that will be it's permanent home, but for now it is "Rigged" to say the least, other than the mounting it is a clean install, I think I maybe have a boost leak

you think? lol

[B5in]

OK, I gotta get better ones, but here is a couple vids running the 93 oct. program...

This is WOT which stays over 4k rpm & shifts fine:



and this is on the highway cruising along @ 1/4 throttle in 5th gear & then I went half throttle for a little while & then watch it drop to 4th on it's own in tip mode @ 4k rpm & I kept trying to switch back to 5th but it wouldn't: