Hi all,
When i start my car it idels for about 3-4 seconds before cutting out. i then have to restart it with my foot on the floor.When i come to round abouts and junctions the car idels for a split second then stalls and its takes a good turning over to get going again. I have looked for the obvious air leaks such as boost pipes, breathers, oil cap. All the service parts are new including coil and leads. I have tried disconecting the cold start valve and this made no difference.

Any help is appreciated. Thanks