Hello guys ! I'm new here as I just bough a fiesta St mk6! But I got problems to start from cold! If I accelerate its no way to start! With out accelerate start but take longer then what should ! I plugged with the obd2 and the only code error its u1262 ! Any idea? Many thanks

I change: spark plugs, battery, air filter! Clean the throttle body! And still the same! If I accelerate from cold start the car get stuck! Anyone got an idea? Can be the idle valve? Or coil pack?

I would say coil pack as once the engine is under load that's when the coil pack will show a fault,
miss fire at all ?