AU Hard to start and slight misfire at idle

[shayne93]

My AU ute (6cyl) is hard to start.
I thought it was the fuel pump, so replaced that and the filter and it is better but still a little hard to start and some times coughs for a few seconds before starts idling properly.

If I am sitting at a set of lights, it will also have a misfire every say 10 or 20 seconds, it's wierd.

Any thoughts???