I have a 2000 7.3 and I noticed it was starting to get sluggish and would start really hard if left unplugged for more then a couple hours. It would also dump a ton of white smoke out the exhaust until it warmed up. once the truck would warm up it seems to drive fine. temps have been in the teens and twenties most of the week. So i ran the codes and pulled a p1211 and a p1249. I have a superchips flashpaq with fuel saver mode on and straight pipe exhaust. Does anyone have any info on what these codes mean and what I can do to resolve the issue that they represent?

 

IPR Valve
This valve is called the Injection Pressure Regulator or IPR


Put this on youtube and it will show you where it is at
How to change the IPR and ICP 7.3l Ford Powerstroke without

I had the same code p1211 on my code reader