paulroad

Has any one experienced the following:

In chip mode: Under hard accelleration..2nd gear goint up to 6K RPM.. then a fast shift to 3rd... flooring it and then sudden limp mode at about 5K. Then about a minute or so later...all power is restored. VAG scan after the fact did show MAXIMUM CHARGE PRESSURE EXCEEDED.

Feedback please.

If this has happend to you ..What Chip are you running...DV's were you using.

JasonS4+Festicle

you probably have a boost leak - check the TBB, BPV and F-hose (if you have one)

paulroad

Thanks but... I was not looking to diagnose.. I was looking for common problems.

RS_F-Whore

They ARE the common problems ;-)

WindyCityS4

If max pressure exceeded, sounds more like a bad BPV, not a boost leak.

VandyS4

They are the achilles heels of the 2.7T powerplant, and most likely the cause of your problems. Pressure test your engine to see if any of these are the problem. Could be just a loose hose somewhere.

If it's not any of those three, maybe you have a defective chip.

JasonS4+Festicle

could be, I got that code with a bad F-hose and a bad TBB as well- he just needs to check all 3....

VandyS4

This guy had the same problem. It was a loose hose.

You should search for "charge pressure" and see what you can come up with.<ul><li><a href="https://forums.audiworld.com/s4/msgs/1605586.phtml">https://forums.audiworld.com/s4/msgs/1605586.phtml</a</li></ul>

JasonS4+Festicle

when I was running an APR chip and stock BPVs....

I thought my first answer was a bit more helpful

FWIW, the 3 things I listed are probably the most common things that cause the code you are getting.

JasonS4+Festicle

<ul><li><a href="https://forums.audiworld.com/s4/msgs/1712836.phtml">https://forums.audiworld.com/s4/msgs/1712836.phtml</a</li></ul>