I agree with karlos..... however why it is too rich is another problem.

unplugging the cold strart valve may well work but its just covering the problem... ford didn't sell these cars from new not starting...

Mine had a similar problem, in the end i cleaned ALL the electrical connectors, replaced all leaking or warn pipes and in the end the problem seemed to have been a gammy air temp sensor. So you may well have a faulty sensor some where. The bosch unit relies heavily on water and air temp to adjust mixture.

I started my car the other day after a few weeks of sitting in the snow and in fired up second revolution on the starter This is after the above and a proper set up.

Rob,