I took the valve out last year an all was ok. I ran an inpa test on the disa to activate it and nothing showed up but nothing happened either. I got the car read and cleared faults with a launch system and the car was transformed for a few days don't know if it was coincidence or not as the same fault returned immediately. Maf appears good as soon as it unplugged car dies. I think I will just have to wait until I get the cam sensor fault cleared before I can rule anything else in or out. Or is there anything else obvious I can checkOriginally Posted by Gar