i have a cut out miss that happens when idleing and on freeway and city driving. not sure what the problem is it doesnt do it right away when you first start it up. but its like a strong miss like you just shut the engine cut off miss. when i take off you can feel the lag of power and jerk while it miss. i bought some plugs for it and see if that will solve it looks like it had a fresh tune up on it. can it be a knock sensor?