2003 Focus Wont Run

[puntomk1]

Hi have a 2003 focus 1.6 petrol, started fine pulled of the drive thought. I'd stalled it tried to start it turns over fine runs for about 5-15 seconds then cuts out, code reader comes up with code u1262 bus comm fault, have replaced spark plugs fuel filter and fuel pump, still the same everyone seems confused even the

Garage where it's at

[jeebowhite]

it sounds like your losing either fuel, air or ignition, if you have replaced the plugs, and fuel filters, have you checked the air filter yet?