Leaky injectors will certinly cause non start and cutting out problems. Looking back on my notes the pressure sensor should be over 1 volt at idle but needs over half to fire. The code for the injector might be pointing to something ,depends if we can trust what the scanners telling us,my launch 431 is allways telling me porkies!!. If its doing it intermitantly and frequently ,scope every thing ,fuel reg ,pressure,maf ,injectors ect and try and catch it in the act. GEORGE