Ok, my mechanic serviced the car around 6 weeks ago, anyways car ran awesome for two weeks then started to missfire, so the coilpack was removed and checked, apparently the coilpack mint according to my mechanic. This weekend the the leads were replaced with fancy Magnecor ones, the car drove fine all Saturday night after the new leads even had a go with a fancy Honda. Then yesterday afternoon the missfire started again. This is now really annoying me, the missfire is very erractic, Car runs fine until heats up then start to miss other times starts to miss from cold. The plugs were replaced wi