I will post my comments from audiforums, Kinda long but please help:

Car was great all day yesterday, at night I got gas at a sunoco station and used 93 (93 was 3.63, 94 was 3.99), filled up about 3 gal. enough to get me home. 5 min into the drive, the engine starts sputting and dying, then goes into limp mode cause it was making no boost. when i came to a stop engine idled at about 500 rpm and that's when i noticed that if i rev it up above 1500 rpm, the engine dies until it drops below that then starts firing again. No apparent misfires, just dead after 1500 rpm. thought maybe bad gas, filled up alittle more at station closer to home. no change. actually now that i think about it, it will die after 1500 rpm for about 3 seconds and then start firing again, that is how i made it home, by keepng the revs higher. i didn't want to drive it like that but i was very close to home. ( i know i prob shouldn't have driven home like that, but i decided to anyway). I will post whatever the scan says but any insight would be great.

Got it to scan, code is P1545 TP SENSOR FAILURE. Has any had this fail, what do i need to replace/fix, i will search on this also.

Checked the voltages on the connector, they were fine, Did a manual tb alignment. did more searching on audiworld and the zine, and i thought i narrowed it down to a bad throttle body. ordered one from ecs, got it today, replaced it and it is still the same issue, dies at 1500 rpm, almost like at 1500, the car is shut off and then turns back on again, still getting code p1545 tp sensor failure. I am lost and stressed.<ul><li><a href="http://www.audiforums.com/m_135349/tm.htm">http://www.audiforums.com/m_135349/tm.htm</a</li></ul>

 

try a TBA and go from there.

 

I have tried multiple TBA's with the vag and manual

 

I have searched all over the place, there are some members that have had the same issue but no ones posted what the fix was. does anyone have any insight.