OK so the dreaded miss fire problem on the 1.2 engined fabias crops up fairly often on here so I thought I would share a couple of pictures from one I am in the middle of repairing now.
If you have a miss fire code that keeps returning usually at low rpm this is the problem 95% of the time.
This engine had a miss fire on cylinder 3 that stayed with the same cylinder after swapping coils,plugs and injectors around. A compression test showed 180 psi 1st time around then 150 psi 2nd time. A leak