Diagnose ongoing no start.
FTE Chapter Leader
Joined: Jan 2005
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From: Henderson, NV
Another data point: I have had my CNC stage 1 since 3/3/2018. It has been driven 57,413 miles since then. It drives my 205/80 injectors just fine.
Perhaps we should start a HPOP Matrix. Paging @RacinJasonWV to the white courtesy phone please.
Perhaps we should start a HPOP Matrix. Paging @RacinJasonWV to the white courtesy phone please.
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Lead Driver
Joined: Jun 2013
Posts: 5,647
Likes: 891
From: north of Minneapolis, MN
Another data point: I have had my CNC stage 1 since 3/3/2018. It has been driven 57,413 miles since then. It drives my 205/80 injectors just fine.
Perhaps we should start a HPOP Matrix. Paging @RacinJasonWV to the white courtesy phone please.
Perhaps we should start a HPOP Matrix. Paging @RacinJasonWV to the white courtesy phone please.
Lead Driver
Joined: Jul 2017
Posts: 6,855
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From: WV
Originally Posted by FordTruckNoob
Another data point: I have had my CNC stage 1 since 3/3/2018. It has been driven 57,413 miles since then. It drives my 205/80 injectors just fine.
Perhaps we should start a HPOP Matrix. Paging @RacinJasonWV to the white courtesy phone please.
Perhaps we should start a HPOP Matrix. Paging @RacinJasonWV to the white courtesy phone please.
I’m still rocking the original HPOP on mine with no real plans for an upgrade, so don’t really have anything to contribute to this. Happy to be a consultant though.
Cargo Master
Joined: Apr 2012
Posts: 2,018
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From: Bottom Of Pikes Peak
I think we can all agree that Performance/ upgrades come at several costs and a shorter life expectancy. There might be other factors in there like oil change intervals, oil filters used, how hard the truck is driven, etc, IDK
I do know, I haven't had the greatest of luck through the years but luckily, I don't drive too many miles per yr anymore
I do know, I haven't had the greatest of luck through the years but luckily, I don't drive too many miles per yr anymore
Last edited by INFRNL; Nov 29, 2025 at 06:52 PM.
Lead Driver
Joined: Aug 2022
Posts: 5,065
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From: Oologah, OK
I think we can all agree that Performance/ upgrades come at several costs and a shorter life expectancy. There might be other factors in there like oil change intervals, oil filters used, how hard the truck is driven, etc, IDK
I do know, I haven't had the greatest of luck through the years but luckily, I don't drive too many miles per yr anymore
I do know, I haven't had the greatest of luck through the years but luckily, I don't drive too many miles per yr anymore
just last night, I got to wondering how much my Excursion has been used this current year.
62 miles
My son scolded me but good on that, told me to start alternating what vehicle I drive to town. So, I got out today, and started the Excursion to Jump start the '99 Cummins, that battery was down to 11.95 and the starter just groaned but the 5.9 didn't start up.
So, after the Dodge had enough juice to whirl the starter, I drove both vehicles around the outside streets of town, to get them warmed up before shutting down for the night, both are on Battery Tenders now. The Excursion always is, the Dodge was out in the pasture in the South 40, no power there...
FTE Chapter Leader
Joined: Jan 2005
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From: Henderson, NV
I was a Program/Project Manager in a previous life. I’m really good at delegating.
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Lead Driver
Joined: Jun 2013
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From: north of Minneapolis, MN
I'm going to come back and tell you all the final resolution on the Stage 2 HPOP from CNC Fab.
I had chatted with Eric and he stated that CNC Fab was going to work something out on the replacement HPOP. I figured they might increase the core credit 100-200 more. That would have been fine as it was out of warranty...low miles but out of warranty.
I received a text from Eric yesterday stating that CNC Fab traced the serial number of the failed HPOP to a run of about 20 HPOP's that had a machining defect. So CNC Fab is straight up covering the replacement. That's pretty stand up in my opinion.
I had chatted with Eric and he stated that CNC Fab was going to work something out on the replacement HPOP. I figured they might increase the core credit 100-200 more. That would have been fine as it was out of warranty...low miles but out of warranty.
I received a text from Eric yesterday stating that CNC Fab traced the serial number of the failed HPOP to a run of about 20 HPOP's that had a machining defect. So CNC Fab is straight up covering the replacement. That's pretty stand up in my opinion.
FTE Chapter Leader
Joined: Jan 2005
Posts: 13,111
Likes: 4,716
From: Henderson, NV
Not to be a sourpuss but why didn’t they inform all owners of the affected pumps before it left you stranded?
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CNCFAB
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As such, being that Dans hpop failure was not able to be directly determined, and showed zero signs of failure from issue other than the pump itself, and the fact it was part of that specific batch, it was decided the proper thing to do was to cover the replacement purchased to assist in lessening the cost he incurred from the failure.
Cargo Master
Joined: Apr 2012
Posts: 2,018
Likes: 524
From: Bottom Of Pikes Peak
I have to agree with that,
just last night, I got to wondering how much my Excursion has been used this current year.
62 miles
My son scolded me but good on that, told me to start alternating what vehicle I drive to town. So, I got out today, and started the Excursion to Jump start the '99 Cummins, that battery was down to 11.95 and the starter just groaned but the 5.9 didn't start up.
just last night, I got to wondering how much my Excursion has been used this current year.
62 miles
My son scolded me but good on that, told me to start alternating what vehicle I drive to town. So, I got out today, and started the Excursion to Jump start the '99 Cummins, that battery was down to 11.95 and the starter just groaned but the 5.9 didn't start up.
Yeah, probably a good idea to get them out at least once a month if you can.
Lead Driver
Joined: Aug 2022
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From: Oologah, OK
we usually splurge on Lunch once a week, so we can alternate them that way...
5th Wheeling
Joined: Dec 2025
Posts: 29
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From: Southeast Texas
Not to hijack your thread
@FordTruckNoob @Sous and any others
I have the starter turning the engine over now. Looking for what parameters I should look for on my scan tool (AE) to diagnose the no start. As it stands right now, I have zero ICP when cranking. I'm going to check for fuel flow and cranking rpm, but would like the handy list.
Edit: I looked at three data
Cranking rpm = 200
IPR duty cycle = 64%
ICP - this would fluctuate between 0 and 12 psi. Unplugging I would see 2400 or whatever the default is.
I tested the ICP harness, I'm confident that everything is fine with that.
And the fuel pump is running. I have yet to put a gauge on that though.
I have the starter turning the engine over now. Looking for what parameters I should look for on my scan tool (AE) to diagnose the no start. As it stands right now, I have zero ICP when cranking. I'm going to check for fuel flow and cranking rpm, but would like the handy list.
Edit: I looked at three data
Cranking rpm = 200
IPR duty cycle = 64%
ICP - this would fluctuate between 0 and 12 psi. Unplugging I would see 2400 or whatever the default is.
I tested the ICP harness, I'm confident that everything is fine with that.
And the fuel pump is running. I have yet to put a gauge on that though.
I’m wondering about my IPR not working properly. I pulled the solenoid and put 12v to it and it’s magnetizing that way.
But hooked to a scan tool I’m seeing the duty cycle in the 50s. Is that too high?
I don’t fully understand all of it but from my reading it shouldn’t be over 20% when cranking? Seems like I’m building enough oil pressure per what the scan tool says? I’m new to all of this, so forgive me if you have to break it down dummy style lol
Lead Driver
Joined: Jul 2017
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From: WV
IPR duty cycle is a commanded value from the PCM. It’s not showing actual IPR response, just what the PCM wants it to do.
Was your scan tool set to psi? It appears to show that as the units on the right. But those numbers look high.
I would try disconnecting the ICP sensor which will take it out of the equation. I don’t think it’s going to solve your issue but it’s a quick and free test.
Was your scan tool set to psi? It appears to show that as the units on the right. But those numbers look high.
I would try disconnecting the ICP sensor which will take it out of the equation. I don’t think it’s going to solve your issue but it’s a quick and free test.