Elm 327 dud or software probem?

[Chug]

good to hear its working,
I managed to help my stepson find why his focus was running rough with mine the other day, forscan fault code said misfire cyl no 2 possibly spark related which helps narrow it down.

[Altransit]

good to hear its working,
I managed to help my stepson find why his focus was running rough with mine the other day, forscan fault code said misfire cyl no 2 possibly spark related which helps narrow it down.

What engine does it have If it's a Zetec, it could be either a coil pack issue, or water accumulating around the spark plug recesses. I've had both of these problems with mine, but it could also be (the more obvious) faulty plug or lead