does anybody no if theres a way of testing for a faulty coil pack useing a digital multimeter?if so how and what readings would you be looking for.ive been reading other peoples threads and i must admit my car does seem slow between gear changes car doesnt miss and seems to idle fine just not happy with it at mo just seems slow gonna blank off the egr valve when i get the chance anybody got an ideas what else it could be. my girlfreinds 1.7 puma is loads quicker than my astra. to be truthfull my car doesnt seem to be able to get away from anything and im not jokeing 🙁