its a friends truck 04 f250 it has studs,egr delete,intake elbow,gauges,intake,exhaust and sct from elite. it has the problem even if it is in the stock program and it throws no codes. everything we've read on the forums points to either the hpop or IPR. he has been driving it the past couple days but then out of nowhere it won't start. we discussed it and it would make sense that valve in the IPR could hang up , possibly due to the increase in demand for oil when running the programmer in the higher settings. if it was the hpop it would have problems when it was running and not everynow and again.