Hi guys can anyone help please. My wife as a 2003 fiesta finesse with the duratec engine. It's started to cut out when comming up to junctions and to a stop. I've cleaned the the throttle body disconnected the battery so on but still have the problem . Inspected the breather pipes what I can are visible to the eye and all seem right. Is there anything else like a idle valve or anything that it could be. Wondering if there's one behind manifold. Any help at all please would be very grateful