I was in the free way with low fuel empty for a 10 to 20 min , i built up air in the lines.I manage to pump 2 to 3 gallons of deisel at the pump then got back in the Hi way for five min motor stopped. I went to fill the tank full , bleed the lines and is not running the motor but it turning on.I bleed every line out until deisel comes out , but it sounds like its close to running the motor on, I check the ignition 3-times click back and it gave me a p 1693 code ? what could that mean ?