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From: Quad Cities
Updated info
Alright guys took me a little longer than I expected. Here's what I have after my hpop change, rpm 156 fuel PW 6 MS ICP 31 psi (way low) ipr BW 14.8% icp .22V, I dead headed the pump and I'm getting nothing on my mechanical gauge. Am I looking at a junk pump off the shelf? Bad ipr? Need some help here. Injector buzz test was good no codes, not a pcm or idm problem.
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From: Quad Cities
Added questions- the pump dead headed will still show low pressure with a bad ipr, correct? Shouldn't the ipr BW climb higher closing the valve to direct more pressure to the heads??? I'm going the right way here aren't I?
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From: Medford Oregon
Yes, the IPR% should increase if everything else is good. Are you sure the PW is 6 MS? It should be 0.6 MS waiting for ICP to climb to 500 PSI or higher then go to 1-6 MS. Try unplugging the ICP and see if any of the parameters change.
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From: Quad Cities
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Joined: Sep 2007
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From: Medford Oregon
Yes, that's .6 milliseconds, that's good. It means the PCM is detecting CPS and the PCM and IDM are in lock (talking with each other).
.006 would be 6 milliseconds.
So for some reason the PCM is waiting for HP oil to ramp up but it's not, so ... It's puzzling why the IPR% isn't even trying. If it's not the PCM is waiting for some other parameter to kick start everything.
Stupid question, but you do have the HP oil reservoir full of oil?
.006 would be 6 milliseconds.
So for some reason the PCM is waiting for HP oil to ramp up but it's not, so ... It's puzzling why the IPR% isn't even trying. If it's not the PCM is waiting for some other parameter to kick start everything.
Stupid question, but you do have the HP oil reservoir full of oil?
Thread Starter
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Freshman User
Joined: Apr 2017
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From: Quad Cities
Yes, that's .6 milliseconds, that's good. It means the PCM is detecting CPS and the PCM and IDM are in lock (talking with each other).
.006 would be 6 milliseconds.
So for some reason the PCM is waiting for HP oil to ramp up but it's not, so ... It's puzzling why the IPR% isn't even trying. If it's not the PCM is waiting for some other parameter to kick start everything.
Stupid question, but you do have the HP oil reservoir full of oil?
.006 would be 6 milliseconds.
So for some reason the PCM is waiting for HP oil to ramp up but it's not, so ... It's puzzling why the IPR% isn't even trying. If it's not the PCM is waiting for some other parameter to kick start everything.
Stupid question, but you do have the HP oil reservoir full of oil?
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From: Quad Cities
Here's where I'm at now, everything hooked back up, removed mechanical gauge unhooked icp, now it's showing 2219-2230 psi of injector pressure. Truck still won't start. Shows 33% DC with 2200 psi
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