car came in with light on,in a rush i cleared codes, reved it up and it seemed ok,thought it would probably have a faulty coil,it has two seperate coils like a punto,fit new coil pack, plugs and leads also,car back now with same codes,now noticed a slight misfire when cold at fast idle and if car is driven hard or up hills, same codes come back,have watched both ecu triggers for coils with scope and they seem ok,i will be checking valve timing tommorrow,map value ok, also noticed that cyliner 4 shows a knock vaule of -1.5% fixed, other cylinders at 0%,all injection durations are ok, anyone had this, ? thanks for reading, dont want to spend xmas eve stuck with this.!!