came in with a no start when hot condition...full of oil...good oil pressure...low icp pressure...removed both valve covers and inspected all injector orings found no problems...replaced connecting tubes...no change...replaced ipr...no change...replaced hpop...no change...starts just fine cold and runs fine once it starts but still will not start hot...now what???

 

do a cylinder contribution test

 

it runs perfect once it starts...no miss at all...so i really dont think it is an injector problem...i'm starting to think that maybe it is a cracked branch tube or something

 

thats very possible are you loosing hpop pressure after it warms up

 

yeah that's what its doin and we've checked the injector orings put new connecting tubes in and a new hpop with the new fitting and its still loosing hpop pressure after the engine warms up

 

You said ICP was low, did you change the ICP sensor?

I agree, sounds like a high pressure oil leak. Snap to connect fitting is the most common on these. It's not if, but when it fails kind of deal. Just search for it, pretty common.

 

its an 06 not an 05

the new hpop came with the upgraded snap lock fitting thats common to leak.

 

sorry ed my bad