OK. Car came up with an engine managment light on friday, struggles to get up to 40mph, sounds like the car is mis-firing. RAC, myself and a mechanic friend have decided it sounds like a coilpack fault. (I am going to get this clarified 2morow) So.... if it is, how much will a coilpack cost me approximately? I will fit it myself, excluding labour costs would be good please. Any ideas?
Engine - 1.6 16V on a T Plate