I think you have the Wrong Tuning Chip ! Normaly you just change the Chip an Everything works fine ! There´s no need to change other parts of the car. The Tuning is only on the Software side, this means the engine becomes a chip with a updated ,,Firmware,,. When you have the Wrong Firmware you have Problems... (like the BIOS from a Motherboard if you flash the wrong firmware it doesent work).



Last uns die Reifen heizen und nicht mit Feuer geizen.