already tried that on the side of the road didn't make a single difference ... it was acting a little funny like it was stumbling on the highway a little and was reading a random misfire on Cyl 2 and 4 as well ... but I've had a misfire issue for a week or so and its occasional so i wasn't sweating it .. was actually planning swap coils tomorrow... lol but now coils are not high on my priority list .