98CoupeV6-thanks for your suggestions. I asked the svc adv last time about new plugs and wires and he said I would not need them until 100,000 miles. I found that hard to believe. Last night my sister was with me and she mentioned the vibration, too, so you can feel it in the passenger seat. I assume the engine is vibrating all the time, it is just more noticible to me when sitting still at a stop. If it were your car, what would you do first? Plugs/wires, idle air control, PCV? When they do that induction service--what is involved? Do they have to disconnect alot of stuff--that maybe was not put back properly? It was doing great before this service...just the gas pedal sticking when the engine was cold. Are Honda's hard to work on in terms of me replacing the parts mentioned above? I will get a new air filter on the way home. I really loved this car--I treated myself to this car after I got a divorce and then 3 months later went home to find my mother dead of a heart attack. I was driving a LeSabre then--great car (I only replaced the battery and changed the oil), but looked like I ought to have Blue Hair--what I call an Old Fart car!! I love this Honda--but am getting very frustrated with not being able to get it fixed. And it was working great til I took it for service. What would you do first? Also, if the computer tells what is wrong with the car...what happens when the computer is the problem? Is the computer able to tell the service people that it (the computer) is the problem? Thanks for your help--jules