i replaced my whole exhaust all the way from the exhaust manifold and the problem is still persistant. i didnt put in my exhaust just because of that problem. It was time to change it. There were holes in it. Im trying to think of anything else that might be causing our problem. Out of curiosity, does anyone know what the proper idling rpm is for our car, because mine idles like its going to die and it vibrates like mad. It sits at around 450-500 rmp. never higher never lower. Then its fine when im driving. I checked my OVP and its not the faulty one. Its the good brand. I cant remember who made the faulty one. But if i have any other ideas pop into mind Ill keep you guys updated. This damn problem is affecting too many of us 260E people and no one can solve it completely. Im tired of sitting in the parking lot or at a light and everyone looks at me when it takes like 10 seconds for the engine to finally fire. And then when its sitting there its about to die and shake apart. Oh well, off to see if the motor mounts could be causing some of the vibration. Everyone keep us updated.