Polo 1.2tsi Intermittent Misfire

[Olibarnes]

Polo 1.2tsi 6R misfire problem

My engine seems to be misfiring, changed plugs which helped for a while then changed the HT leads and now changed the ignition coil and there’s no luck.

There seemed to be some residue on one section of the ignition coil?? (Pfa).

EPC, flashing engine light, traction and tyre pressure warning lights came on but wasn’t reading any codes when I plugged it in.

Someone please help as I’m clueless now.

Update: I drove on the block after the initial change of the ignition coil and it drove horribly and then turned off the car then restarted the car and drove home and it drove like a dream. Do you think that it just needed one cycle to get out any bad stuff after changing the coil or would this not be the case?