yes
This is a very general answer, as I don't know what "running bad" means. I would start by changing the oil filter and filling it with new oil. I find that quaker state is the best. Next, I would change the spark plugs. Bad spark plugs and low oil can often cause a car to jerk and shake whether your driving or just idling.
Sounds like a misfire caused by electric supply to plugs.
if the spark plugs are black because your car is running too rich. your plugs are fouled.
check your fuel pump, alot of magnas had faulty fuel pumps and due to your car stalling and splattering would be due to the fuel pump.
Could be a problem with one of the coils. It has 4
Engine is running extremely rich.
Spark plugs need to be changed. had the same problem and it disappeared when I replaced the plugs.
Possibly in need a new spark plugs... I had a Honda that did this,and new plugs,it was running like new....
No. The spark plugs are responsible for igniting the fuel in the cylinders. If you start yanking them out, the engine is going to stop running. This is covered in the book Things That Dummies Do.
Yes, when idling and driving.
Bad plugs or plug wires.
One reason a 1998 Cadillac Deville would cut off while driving could be the fuel pump or the car is out of fuel. Another reason could be the spark plugs.