ENGINE FIRE ON 2015 RAM 1500 ECODIESEL. LOSS OF ENGINE POWER, BUT STILL RUNNING, AT FREEWAY SPEED. NO WARNING LIGHTS OR INDICATORS. PULLED TO SIDE OF THE ROAD AS "ELECTRONIC THROTTLE POSITION FAILURE" APPEARED ON INFO SCREEN. PULLED OVER AND OPENED THE HOOD. THERE WERE FLAMES COMING FROM THE BACK OF THE ENGINE. COMPLETE LOSS.