I have a Mitsubishi Fg25N LPG forklift and The thing is that the machine suddenly stoped and its not starting,its cranking but its not starting.what have i noticed its that the fuel injector when I turn the key on its fludding the mixer with gas ,and if I put my finger there where the lpg its entering in the mixer from the injector the engine starts.what might the problem be the injector or some sensor?or the ecm shoul control the injector tonthe right amount of lpg.