OK here goes my troubles I am working on a 2002 elantra that Cranks wont start it will start and run if i spray starting fluid into the engine will aslo run if i aply power to fuel pump the weird thing is i am getting power at the harness where it conects to the pump but the pump will not turn on i have checked all fuses are good i have also replaced the fuel pump with a new one from hyundai i have checked power at the relay with key on i am getting power i have replaced the cranks position sensor at this point i'm bafled as where to go from here i'm thinking posible ecu problem but dont want to go there unless i have to