Hudgee

I own a large turbo escort cosworth with a problem.The problem is that when I start the engine cold it starts ok. Let it idle to the normal temperature about 15minutes and it just cuts out. If I try to start again,it wont start. Engine cranks properly when starting. Let it "cool" about 5 to 10 minutes and it starts just like nothing ever happened. The prolem also appears when hot,after driving. I park the car,come back in about 10 minutes, try to start and wount start. When starting from cold no problems,always starts up properly. CPS sensor has been change today, but to no avail. Also tried a Coil, but again, car starts fine, then cuts out once warmed up.

I have noticed that when I turn the car to ignition, the sensor that is located to the right of the engine and is light grey in colour (located by where the boost hose goes into the engine, next to throttle cable) this clicks quite loudly and quick..

Any ideas as to what the problem could be as its eally starting to annoy me!

Thanks