Over the last 3 or 4 months the engine light as come on. The code it is showing is P0253 Drivability is fine and the engine light goes out after so many starts/shutdowns, usually a day or two. Is this anything to worry about? Is the VP44 dying? I tried installing Bosch 275's a few weeks ago (they were new) and the truck would not fire up. Put stock injectors back in and truck run fine. One response I got on here over that issue suggested the pump may not be providing enough pressure to pop off those bigger injectors.
What do you guys think?
Paul
What do you guys think?
Paul