well about two weeks back I was having running problems with my focus cosworth and I really fort it was the 3 bar map censer that was at fault . Well I stuck at it doing tests
and iv got to the bottom of it . And I'm glad to say iv now sorted it and it cost a massive £15 it was the blue censor .
The car was spot on when cold but when it got hot that's when it started over fauling big time witch started me thinking. A bit of a pain to do as my setup is not standard and with having the WRC breath on made it very hard to get to but I did it and it's running spot on now