why will my 2001 Mazda B4000 stall when i slow down or stop?

What is your question?

Some times when im slowing down or stopping my truck will stall. it idles and runs fine. when its warmed up it will idle at about 7 - 800 rpm. just every so often it will stall when i slow down or stop. it dont do it every time. maybe every other time i drive and it will usually only do it once when im driving it, sometimes more but not always. i have changed my air filter fuel filter coil pack spark plugs and wires and it still stalls. what am i missing?