Was in my buddies 2001 7.3 and as we were driving it started running rough then shut off. It will not start back up. We got it back to my house and we unplugged the
icp sensor to see if it woulds start up, it wouldnt. We then took the
icp sensor out and hooked up a guage and was getting 0 PSI. He wanted to get a bigger hpop for his 250/100 injectors anyway. He order the terminator t 500 modded hpop, new
icp, and new
ipr. We installed all of this and now he is only getting 250 psi on both banks. We have cranked the truck for awhile now thinking maybe it had air in the lines. We pulled the valve covers off to see if maybe a injector o ring was bad but everything looks good. So what could cause the hpop to not make the 500 psi to start. A couple times the truck wanted to start but wouldnt hpop was makin about 400-450 psi.