Truck starts right up when cold but once it gets to temp and try to shut off/start it turns over 2-4 seconds, Truck had a tune with a 5 position switch before I bought it and exhaust. Egr was already unplugged from the tune so we romoved it along with the def tank. Also added a lift pump and removed the filter head.
Had a fuel pressure regulator code so we changed the one on the rail but still have them wed start issue. Gonna see if I can get scanner to check fuel pressure at the pump, that control valve would be my next guess
Had a fuel pressure regulator code so we changed the one on the rail but still have them wed start issue. Gonna see if I can get scanner to check fuel pressure at the pump, that control valve would be my next guess