When cold the car runs fine, good pickup and smooth idle. When warmed up the idle is rough and some sputtering and lousy acceleration. Hiway seems fine. I doubled checked every vac hose and connection and everything looks good. Econony gauge is normal when idle. Darkness test showed no plug wire arcing. Recent cap, rotors, wires and plugs. I have owned the car for 6 yrs and now has 110k mi. It has a Bosch 3 wire sensor. I also replaced the EHA 0 rings and it stopped my gas leak and the smell. Any thoughts?