My car is running very rich. I can smell the fuel and it stalls. I have cleaned the crankshaft sensor, changed the camshaft sensor, rechecked timing at crank, checked throttle body and hoses. Next will have to be the MAF (air mass meter) but the thing is when I unplug the MAF nothing really happens much with the engine. It certainly doesn't run any better with or without it. Only once it stalled after pulling plug and one time made a sound like gobbling air. The car is starving for air.