I bought this car for my son that car has 106,000 miles and the problem is that often the engine gets flooded with fuel to the point that is pushing crude fuel out the muffler. I changed the injectors,fuel regulator two times,spark plugs,crankshafts sensors,thermostat and temperature sensors. At this point I don't know what to do. Because after the fuel dryers inside the engine the car works fine for a couple of days then it does the same thing. Please help.

By the way it's a 1998 Nissan Altima with a 2.4 liters engine

If true about fuel coming out the exhaust pipe you have pretty much clogged/melted/killed the cat on that car and no way will it be running right after that.

It's true and the car is running. If you can help me. Please do

Did you finally resolved the issue?