I just bought an A4 b6 1.8t and it has some modifications, such as brakes, suspension, and some other stuff. The thing is that this car has a bigger turbo than the original and bigger intercooler to, when the car accelerates till red line there is no prob but when it accelerates a lil bit less than red line the computer becomes crazy for a few secs. Ofcourse under 5500 rpm no prob at all. So i dont understand whats up with this thing. I brought this car from the states and here where i live theres not so much places that tune cars up or stuff. So please if u know what might be i will higly appreciate your help!

 

we need more info as what turbo, what tune, what injectors.... just give us a list of the mods.....


what plugs? gap?

checked for vac leaks?

have you vag'ed the car yet?

know what vag com is?