Mycar will not start. It has 198,000 miles and up until two days ago it ran perfectly.When i started it up it idled extremely rough (putt-putt-putt) until you gave it gas, as soon as you remove your foot from the gas it went right back to the violent shaking and there was water dripping from the exhaust pipe. i thought i better get to a shop quickbut when iwent to back the caroutthe cardied. I changed the spark plugs and spark plug wiring and even the coil pack for some odd reason and gave it another shot. Now when you go to start the car the fuel pump buzzes, the starter cranks, and for a split second its sounds as if its going fine until suddenlly it "backfires" (im assuming) and a light grey colored smoke that smells of gasoline or oil maybebegins streaming from the throttle body where the air filter is connected to the intakemanifold and the car cuts off.If you need more info contact me at all7cities@yahoo.com. Any help would be greatly appreciated...THANX