FAILED. Ford Focus 1.8 TDCI 2005

I have a Ford Focus 1.8 TDCI of 2005, when I go with the cold, when I go running it is covered, but he just will start immediately, but sometimes he stops at all. I have changed the pump stop. Someone has happened or knows what it can be. It does not fail when connecting the computer.
Thanks
greetings

Check that you have the gasil filter joint well centered and that you have no leaks or the tube of the storage of the pump is truned to me with one of those purge it started and I had it to relay it stopped it and the five minutes or started and it was the filter joint that did not settle well

Do the next test, since it served me and I saved a paste, in fact, of € 300 that was the repair, my diagnosis gave me the solution, real and without cap for less than € 0.50 haha.

Open the capot, remove the engine cover, so you have access to the injector ramp.
The car starts and in the injector ramp there is a collector, a cable with the black and red connector.
With the car started, move that cable, if you see the car falls down, Wala !!! You have found the solution.

For the engine, disconnect the collector, and if you do not have a spray cleanser of electronic components, as was my case, take a 96º ethyl alcohol boat (the one we have for the wounds) and check a drip inside, that clean well.
Leave it for a while, to evaporate alcohol. Connect it again and start the car.

Test again to move it and ... ready, problem solved.

I hope that is. Greetings from Seville !!

Try to look at the vacum ducts can be k aya any or is cut ......