02 mazda 6 no start condition "please help"
 

I have an 02 mazda 6 with a 4cyl and a no start condition. let me break it down for you because it is a little strange. First when you turn key it tries to start for just a second then dies almost as if it would start if you left the starter engaged for a longer period of time "this is not the case" . Also "and here is where it gets odd" if you remove a spark plug wire "does not matter which one" and try to start it again it actually gets a little better and it will run for a few seconds then die again. I have done all the diagnostic i can think of. i.e.-fuel pump sounds fine, pressure at rail, spark on all cylinders looks good, all fuses look good and I have voltage at all my injectors. Any help would be very appreciated.