My car sputers and stalls. It has even been back firing. When I am stopped or stopping or sitting idel it wants to die. I have replaced the fuel filter and put in some gas treatment. No different. A friend told me to check the EGR valve but I don't even know where that is. I am constantly giving it gas just to keep it running. But as soon as I start to take off it goes then stalls and then I am at the risk off getting rearended cuz of no power and backfiring. I was told it sounds real bad like it is running on 3 cylenders.