I am using an Innovative OBD scanner
Innova scanner
Fuel pressure is approximately 13 psi at idle and 9 WOT
When I get the high idle I get a check engine light but there is still no code when I check it with the scanner
The injection pump was replaced with a rebuild from Southwest diesel in Phoenix approximately 4 years ago but the truck has had this issue even before then. I took the truck out of service in December of 2012 and it has not been driven since until recently so the pump probably has less than 50,000 miles on it