problem with cold starting on ford 1996 zetec?

[Derek]

when the engine is cold i have to idle the car for about 5 minutes before i can drive away other wise it stalls, i have replaced the idle control valve, manifold gasket, HT leads, plugs and changed to a 10w oil, i cannot get a diagnostic done on the car because no auto electrician can find my car on there list of vehicles in the computer. i did however find that one HT lead was loose before and change them and some there was corrosion in the module for the spark distributor, i did clean this but have still had no luck