Hi guys I have a 2002 Audi a4 1.8t. My problem is that when i firts start the car up and drive for the first 2min I have lots of boost coming from my Ko4 and later it disapears about have of boost is gone. I have a giac chip installed and its not programed for the ko4. And is it OK for the turbo to turn Red with the cat. ???

 

Welcome to the forums.

This area is just for welcomes. If you ask the question in the A4 section, you will get plenty of help.

 

Hey welcome to the forums. Hope you get your problem resolved.