Hi to any who might be looking at this thread. I got this code at 137,000+ on my Eco-deisel ram. I ordered a replacement pump on eBay at $139 as new. I then ordered a replacement injector also new, from a____n as the new crush gasket was $20+ and the whole thing was $55. I bought the abd-2 software for android at $49 to use with my obd II blue-tooth reader. I flushed the def tank with distilled water from beneath as shown in another post. Then I back flushed the line from the injector end toward the pump, all connectors unhooked & again with distilled water. Installed the new pump & new injector. Sprayed all the connectors & connections with distilled water. Started the app and hit the start button on the truck. A message flashed saying there was a problem with the DEF system See the Dealer. It cleared on it's own. I started the truck and all is well for 600+ miles. I hope this helps.
