ok so gotta ls vtec in a eg hatch and it one day started running like crap . missing no throttle response or anything but will start and idle fine. ive checked plugs wires injectors timing dizzy ecu fuel pressure and the pumps good its a walbro 255 brand new. but it seems like its not getting enough fuel it just spits and sputters. cannot figure it out. need a little help on this one. it has a B18b bottomend a gsr head injectors stock intake mani and its running on a gsr ecu. any help much appreciated.