i check for spark and do have spark so then i checked for feul injector signal at the injector and do not get an puslation? i spray fuel down the intake and it does start? I also have fuel presure at the fuel rail? I checked my ecm and looks connected correctly? Ido not know what to do next? But I think it some type of problem with the injector not opening up due to no singal? does any one knows about a trouble shooting tree or a wiring daigram i could follow?