Sometimes when I start my car(89 560 sel), it sounds as if it is choking..it is kinda hesitant to start..it will take like 4-5 seconds instead of 2. Right after it starts up, I get a really strong smell of gasoline..does anybody know what might be the issue? and i took it to tbe dealer they told me it was fine but they did readjust the computer for my car.and took it to some dude that replaced my oxygen sensor and plugs and some other things. it almost seems like it;s not burning all the fuel that was delivered to the engine.ever since i've had the problem my engine has been very loud. On top of it, my gas mileage is horrible... Thanks. hope ya'll can help me out kuz i want to keep the car but i can't afford the freaking gas this son of a gun is drinking.