My car is a 2001 TT with a chip, GT2 intercooler, gt2 turbo, Plenum, fabspeed headers and exhaust, diverter valves,
So I am on the track,
1 do you leave the PSM on or do you turn it off??

My problem happened with the PSM on, after braking the car "stalled" for a few second i could feel heavy vibration in the stick shift...and breaks, hard to explain,,or it felt like a pressure leak..I can t find better words to descibe it, when I turn the Psm off the car was fine....
Now on the way home same thing happened, Psm was on,
I just have no idea what is the problem???

I would appreciate any input

 

How hard were you braking?
Was the surface uneven?
Were you maybe turning while braking?

I keep PSM on when I am tracking and it rarely kicks in unless I have screwed up very badly. But it will shake the car a little if I brake hard on an uneven surface.

 

Thanks

It mostly happened after a big turn...i was not longer braking, soft on the gas pedal and yes i was still turning slightly...just can t figure it out...
thanks

 

ef, I agree with Mike. With those mods at the track (were I live) It doesnt sound like, to me, this is a PSM issue. Did the car over boost or go into the "limp" mode?
May be time to have the mods rechecked and the ECU codes read.

Also didnt notice if you replaced your fpr to a 5 bar unit?

Also how much gas in the tank?

 

tom what is the fpr???
I am in Seattle and right now the car is at the dealer for an oil leak...I don t think I overboosted..on the straight the car was doing great...for the afternoon i ran without the PSM and it did great....all the shop I talked to thought it could be the PSM since the car has been modified...they all said to track the car without it....thanks for your input

 

fpr = fuel pressure regulator.

 

The car didn't have any problem after you turned off the PSM. You were hauling *** at the last session buddy.

 

Yes I was....the car did fine,,,but you know how it is,,,you re on the track something happens...get that pit in your stomach and you sart wondering whats going on....
On thing was for sure the last session was great , fun following you.....
Glad to see you had a good time yesterday, despite the weather and that you got thru it without any incident to your GT2.