1992 TSI Autorev Issues...

[punisher]

My 1992 Tsi is running funny. When it is warm and I raise the rpms before I let out the clutch, the car will autorev between 1100 and 1500 rpm. It kills the low end power and makes the car difficult to drive. If I can keep the revs around 3k, it drives pretty ok, but I don't like hot rodding around like that. It only happens when warm and only at low rpms. The car runs like a champ while warming up.

The car is stock, except for 2g pistons, bse, 2g manifold, buschur uicp, k&n filter with a hacked air can. Its a basic car, just being used as daily transportation.

 

[rgeier11]

Have you read this?

click

 

[punisher]

Hmm. Good read. I just now replaced the isc with a good spare that I keep around and took the car for a spin around the block. Sure enough it still does it. It isn't an idle issue, the car idles great. It only happens when I give it a little gas to get it rolling.

 

[punisher]

Any ideas? Suggestions, at this point I'll try almost anything.

 

[belize1334]

Could be a faulty tps or closed-throttle-switch. Get a datalogger and you'll be able to trouble-shoot it.

 

[stevep]

+1 A malfunctioning IPS would be high on my debugging tree.

 

[punisher]

Went back to the basics and did a boost leak test. My bov wasn't holding air at all, it functioned fine, just leaked all the air back into the recirc pipe. No leaks whatsoever other than that. Replaced the bov and she seems to be back to normal.