NEED HELP ASAP!!!! PLEASE HELP
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Joined: Nov 2010
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NEED HELP ASAP!!!! PLEASE HELP
Ok #2 injector went bad broke everything down changed the injector put everything back together without a problem.Cranked on the truck for a few seconds finally firing up, and ran like a sewing machine the best the truck has ever ran! cut it off after about 15 minutes of idling fine and hopped back in to take it for a spin and make sure everything was workin properly and it too it a while to crank again i figured this was due to air still in the system. Took it for a spin and it ran great come back home shut it off and now it wont fire at all, will spin over all day but no fire. spray a little carb cleaner in it and it will try to fire but thats it. im about to pull my hair out over this! PLEASE HELP!!!!
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From: Millersville, MD
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Not sure but you just use the ICP reading off the ICP sensor?
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Hotshot
Joined: Apr 2010
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From: Saratoga Springs,UT
thats how i get mine off the icp thru scan gauge.sounds like your hpo system is leaking . how did you take off the oil rail. did you take it apart at ths stc fitting or just let it piviot up while still conected to the up pipe mine was 03 i know there was a change in the oil rail not shure when and was there a change to the stc fitting an upgrade at some point in time?
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Hotshot
Joined: Jul 2005
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From: Middle Tn.
That is correct. I was just answering the question the way it was asked. I use the ScanGauge ll for the ICP as well.
Hotshot
Joined: Apr 2010
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From: Saratoga Springs,UT
yours must be newer than 03 on an 03 you can leave the oil rail hooked up just pull it off the injector its on a braided flex line it will move enough . so on the newer one did you replace the d-ring oil seal on the crankcase to headtube {standpipe}.My icp is at about 630-680 at idle IIR. your numbers will be lower if it leaks I dont think the injectors will fire if you have anything under 500
Hotshot
Joined: Dec 2003
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From: Stuttgart, Ar
I would start with an air test of the system. It could also be the IPR valve open and dumping oil back to sump without building pressure. Hopefully a tech will chime in and tell you how to read the test for that as I don't know the specific test for the IPR valve.