Misfire at 60 mph + maintained speed. 1.4 Petrol

Hi there, you have probably heard about the misfire thing a dozen times. I picked my lovely little a2 up recently.
It was driving fine until I tried a motorway journey. The car lost power at about 60 mph and started running on 3 cylinders. The EM light was flashing. I limped to my destination, changed the coil pack, reset the diagnostics and it was fine.

The car is perfect around town, but when I try longer motorway journeys, the flashing light comes on again and the car misfires. I pull over for ten minutes, and it returns back to normal. The light even switches itself off now.

So, it seems ok unless I push the car at a constant high speed.

Any help appreciated. My mechanic is scratching his head, I have been searching high and low online
 
It's always worth starting with a diagnostic scan and sharing any fault codes on here.

Cheers Spike
 
Hi, I am trying to get a hold of the garage to get codes. I remember the mechanic saying it was it was cylinder 3 I believe. Change coil pack
 
Back
Top