I replaced stand pipes, stc and oil cooler and now am having starting problems. The truck starts but if it sits for more than a minute truck takes a long time to refire. IPR duty cycle go's to 85% and icp slowly climbs to 200ish then jumps up real fast and fires. I pulled oil filter and cranked seems to fill kinda of slow to me i figures it would be faster. I dont think i have a HPO leak do to it fires right back up if i shut the truck off and resart within a minute. Any help would be great.