Got my Mondeo here, been faultless until last time I took it out, WOT at low rpm ie around 2k as it pulls it gets to about 3k and really stutters hard, then after about 4K will pull clean again.

its sporadic, it did it last time I had it out, but then cured itself but now it’s back again.

plugs are new before this issue arose and gapped, unplugged maf and no difference, visually inspected pipework and couldn’t find any splits, engine appears healthy other than this stutter/misfire, do the coil packs go on these?

Ive plugged Forscan into it and no codes, not even a misfire one?

anyone had or heard of similar issues?

thanks.