Hi there just wondered if any one can help me as my mk1 Focus RS will not idle properly and wants to cut out, the problem is better when air con is on but i just would like some opinons?? The car has a Bailey dump valve(not sure which one?), Dreamscience, and front mount intercooler these were on the car when i got it. I just want it idle and not cut out as its driving me mad!! Hope someone can help