ive had the emissions control light come on my dash yesterday. checked the manuel and it says the light should come on and flash then a trip to the dealer is needed. mine stays on constant. i used the car last night and the light went back off for about 3 hours only to come back on. ive got a forge splitter valve fitted so im guessin its just that an that i am losing pressure as its not full recirculating so its bringin up a fault. I went to a local german tuning specialist the other week to try the revo remap free trial and the guy turned my dump valve round sayin it was fitted the wrong way yet i followed the pictures that forge sent. could this be the problem as ive had the dump valve for 4 months before he changed it round and no problem or could it possibly be a fault where there is some code left in the ecu from the free trial. the car has not changed at all performace wise since the light has come on, or the temp doesnt go up, an it drives an stars absolutely perfect. im confused lol