Ignition from my Ford Fiesta 2006 vehicle

Greetings to all ... !!! I have problems on my vehicle, I should turn the key two or three times before making contact for the ignition ... if I try to turn it on at the first chance, this Corcobes and turn off ... what should I check? I already cleaned the injectors, change spark plugs, .... The gasoline pump changed it less than a year ago.

Hi Miguel check if you have a loose hose or test with another key it may not be recognized by the switchboard, tell me if your car is gasoline or diesel, because each motorization can have its defects, greetings Alfredo.-