Anyone help or had the problem before I have an audi a3 2002 that has had a stage 1 map and an exhaust system when driving at high revs the epc light comes on and puts it into a sort of limp mode (looses power) and know why this is doing this and how to resolve it ?

 

Do you have any CELs? Does this correct, when you restart the engine?

 

Yes it does

 

You should scan for codes.

 

Hm, seems like a werid problem. I hope that it stops soon.