rener med du har stilt CO på ECU en ? Level 6: Used on the RWD sedan (RS) Cosworth, has the same capabilities as the level 1 model but uses totally different electronics. That's why Level 1 and Level 6 chips can not be interchanged. Can be recognised by the mounting flange on the front face (like the Level 1) and a white CO adjustment screw (Level 1 has a yellow one).