Stutter/No power 1.6 Focus

[Timmywoff]

Hi All, first post and i hope it is in the right place (move it if not).

My 1.6 2010 Focus Zetec S has an weird issue. If i go into third around 25 - 30mph and start to accellerate the car stutters a bit and struggles to apply any power i does this after changing to 2nd between 15-12.

Also i was on the motorway yesterday and at a point when driving in fifth it did the same sort of stutter and the engine management light started flashing, i slowed right down to it was fine all the way home after that

Any ideas?

Thanks

[leicsguyuk]

If its petrol engine, could be the 'coil pack' on its way out! If the EML is on and the OBD reads a missfire I'd change that first.