Check engine soon,stalling running rough

My check engine light came on 3 days ago. I went to drive it and it stalled. The car kind of backfire with areally bad smell comeing out of the exhaust. There is a lot of liquid comeing from the tailpipe. I checked all the fuilds and they are fine. Can someone help me with this problem?

You need to get the error code(s), go to autozone they'll read them for free.