Notices
1999 - 2003 7.3L Power Stroke Diesel  
Sponsored by:
Sponsored by: DP Tuner

HELP PLZ

Thread Tools
 
Search this Thread
 
Old Apr 8, 2021 | 08:43 PM
  #16  
AllaboutMPG's Avatar
AllaboutMPG
Logistics Pro
10 Year Member
Liked
Loved
Community Favorite
Joined: Oct 2011
Posts: 3,953
Likes: 120
From: Mcdonough, GA
Club FTE Gold Member
Im not where i can get to a computer, turkey hunting and at camp for another week or so, but if memory serves the icp is part of the 5 volt reference circuit. Need a wire print and check for continuity from icp to pcm, check for 5 volt reference signal, and check all wires for short to each other or to ground.

does icp plug have oil in it? I believe you said you replaced icp sensor. Did you see the 2600 psi before you replaced it and after?
 
Reply
Old Apr 8, 2021 | 08:49 PM
  #17  
powerstrokeN1's Avatar
powerstrokeN1
Thread Starter
|
Trailering
Joined: Apr 2021
Posts: 21
Likes: 0
Originally Posted by BWST
Try unplugging the ICP and see if it will start. Just to rule out a defective ICP sensor.

If it still does not start, we'll assume ICP is good, and IPR is climbing because we're not getting fuel. As has been suggested, see if you can get a fuel pressure measurement.

Does the truck have a chip? P0605 might just be from the performance chip.

What does FIPW (AE) or FUELPW (FORScan) read when cranking? Should be at least 0.6ms if PCM/IDM are in sync.

What is your cranking RPM and cranking voltage?
I get the same icp pressure with icp plugged and unplugged no change. Cranking rpm is 160/280. Icp volts are 2.8- 3.4
 
Reply
Old Apr 8, 2021 | 08:52 PM
  #18  
powerstrokeN1's Avatar
powerstrokeN1
Thread Starter
|
Trailering
Joined: Apr 2021
Posts: 21
Likes: 0
Originally Posted by powerstrokeN1
I get the same icp pressure with icp plugged and unplugged no change. Cranking rpm is 160/280. Icp volts are 2.8- 3.4
I dont think its chipped but It might have used to been. I need to check on that and check fuel pressure.
 
Reply
Old Apr 8, 2021 | 08:56 PM
  #19  
powerstrokeN1's Avatar
powerstrokeN1
Thread Starter
|
Trailering
Joined: Apr 2021
Posts: 21
Likes: 0
[QUOTE=powerstrokeN1;19822494]I dont think its chipped but It might have used to been. I need to check on that and check fuel pressure.
are all chips adjustable like the ts6 with an adjusting **** or are some just programmed and no adjustments bc there is no adjusting **** like on my 97 obs with a ts6
 
Reply
Old Apr 8, 2021 | 09:00 PM
  #20  
powerstrokeN1's Avatar
powerstrokeN1
Thread Starter
|
Trailering
Joined: Apr 2021
Posts: 21
Likes: 0
Originally Posted by AllaboutMPG
Im not where i can get to a computer, turkey hunting and at camp for another week or so, but if memory serves the icp is part of the 5 volt reference circuit. Need a wire print and check for continuity from icp to pcm, check for 5 volt reference signal, and check all wires for short to each other or to ground.

does icp plug have oil in it? I believe you said you replaced icp sensor. Did you see the 2600 psi before you replaced it and after?
I don't know what the icp pressure was prior to putting the new icp in. I didn't have AE yet. I'm going to need some fine details on testing those wires. That is not.my strong suit but I can be taught and I do have a Klein volt meter.
 
Reply
Old Apr 8, 2021 | 09:01 PM
  #21  
AllaboutMPG's Avatar
AllaboutMPG
Logistics Pro
10 Year Member
Liked
Loved
Community Favorite
Joined: Oct 2011
Posts: 3,953
Likes: 120
From: Mcdonough, GA
Club FTE Gold Member
The icp wiring goes through the 42 pin connector. Have you checked the bottom of the 42 pin connector harness for rubbing through where it crosses over the driver side valve cover. We have seen that before.

if your old icp was not full of oil then you may want to put it back in and see if the numbers you're seeing change. I realize you installed a new OEM Icp but even new parts can be bad
 
Reply
Old Apr 8, 2021 | 09:04 PM
  #22  
powerstrokeN1's Avatar
powerstrokeN1
Thread Starter
|
Trailering
Joined: Apr 2021
Posts: 21
Likes: 0
Originally Posted by powerstrokeN1
I don't know what the icp pressure was prior to putting the new icp in. I didn't have AE yet. I'm going to need some fine details on testing those wires. That is not.my strong suit but I can be taught and I do have a Klein volt meter.
I'll get a gauge and check fuel.pressure in the mean time. I'm actually headed to Columbia Sc on Saturday so itll probably be a few days. I greatly appreciate your time man. You are awesome. Sounds to me.like.its about time for me and you to hit the sack for.the night. Good luck on the hunt.
 
Reply
Old Apr 8, 2021 | 09:06 PM
  #23  
AllaboutMPG's Avatar
AllaboutMPG
Logistics Pro
10 Year Member
Liked
Loved
Community Favorite
Joined: Oct 2011
Posts: 3,953
Likes: 120
From: Mcdonough, GA
Club FTE Gold Member
Originally Posted by powerstrokeN1
I don't know what the icp pressure was prior to putting the new icp in. I didn't have AE yet. I'm going to need some fine details on testing those wires. That is not.my strong suit but I can be taught and I do have a Klein volt meter.
I'll be glad to help with wire testing best i can from my phone if we get to that point. Should be fairly easy to test the part of the harness from icp to 42 pin connector. May someone at a computer to help us with wire prints. @Sous may be able when we need it.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-1

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-2

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-3

Every 2026 Ford Engine Explained

 Brett Foote
story-4

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-5

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-6

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-7

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-8

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
story-9

Top 10 Ford Truck Tragedies

 Joe Kucinski
Old Apr 8, 2021 | 09:10 PM
  #24  
RacinJasonWV's Avatar
RacinJasonWV
Lead Driver
5 Year Member
Community Builder
Liked
Top Answer: 1
Joined: Jul 2017
Posts: 6,860
Likes: 2,335
From: WV
Club FTE Silver Member

Just because the fuel is disappearing out of your can doesn’t mean you have pressure. The FRP is always bleeding the excess pressure by allowing the fuel to bypass flow back to the tank. If the FPR isn’t holding pressure then all your fuel is just pumping to the tank.

I’m not the best with all the numbers and sensors but having the same ICP value with the connector plugged and unplugged doesn’t sound right to me.
 
Reply
Old Apr 8, 2021 | 09:10 PM
  #25  
AllaboutMPG's Avatar
AllaboutMPG
Logistics Pro
10 Year Member
Liked
Loved
Community Favorite
Joined: Oct 2011
Posts: 3,953
Likes: 120
From: Mcdonough, GA
Club FTE Gold Member
Originally Posted by powerstrokeN1
I'll get a gauge and check fuel.pressure in the mean time. I'm actually headed to Columbia Sc on Saturday so itll probably be a few days. I greatly appreciate your time man. You are awesome. Sounds to me.like.its about time for me and you to hit the sack for.the night. Good luck on the hunt.
i love this sight because there are lots of great people here who jump at the chance to help. I have received my fair share for sure. We'll get you running again.

likewise heading to bed, them birds get up early
 
Reply
Old Apr 8, 2021 | 09:29 PM
  #26  
Sous's Avatar
Sous
FTE Leadership Emeritus
Veteran: Air Force
Community Builder
Top Answer: 1
Top Answer: 3
Joined: May 2014
Posts: 27,353
Likes: 5,946
From: Lake Hartwell, GA
FTE Emeritus
Originally Posted by powerstrokeN1
I'll get a gauge and check fuel.pressure in the mean time. I'm actually headed to Columbia Sc on Saturday so itll probably be a few days. I greatly appreciate your time man. You are awesome. Sounds to me.like.its about time for me and you to hit the sack for.the night. Good luck on the hunt.
I was just in Columbia twice last month. Hopefully the pollan has eased up a bit.

Originally Posted by AllaboutMPG
I'll be glad to help with wire testing best i can from my phone if we get to that point. Should be fairly easy to test the part of the harness from icp to 42 pin connector. May someone at a computer to help us with wire prints. @Sous may be able when we need it.
I am absolutely willing to help out when needed. Thanks for tagging me Paul and bringing this thread onto my radar.
 
Reply
Old Apr 9, 2021 | 02:19 AM
  #27  
udsuth78's Avatar
udsuth78
Lead Driver
20 Year Member
Liked
Loved
Community Favorite
Joined: Oct 2005
Posts: 6,129
Likes: 1,919
From: Ponca City, OK
If remembering correctly koeo the 3 wire sensors should have 12v to one wire, 5v, to another, and a ground. 2 wire sensors just have the 5v and ground. Double check me cause it's quarter after 2 a.m. here and I just got back from a work call out, so I'm not firing on all cylinders. Might need a shot of Diesel Kleen and a hot torque.
 
Reply
Old Apr 9, 2021 | 07:15 AM
  #28  
FordTruckNoob's Avatar
FordTruckNoob
FTE Chapter Leader
20 Year Member
Community Builder
Loved
Community Favorite
Joined: Jan 2005
Posts: 13,122
Likes: 4,725
From: Henderson, NV
Club FTE Gold Member
My money is on something odd going on with the HP oil circuit be it a bad ICP sensor, bad ICP sensor pigtail or bad HPOP itself. Your testing will provide the data needed to make that determination. I'll dive deeper into the DTCs in the shop manual.

EDIT:
Shop Manual DTC Descriptions
P0605: Internal Control Module ROM Error
P0475: Exhaust Pressure Control Valve Malfunction
P1118: Manifold Air Temperature Sensor Low Input

My remarks
As mentioned, above, the P0605 could be because of a chip.
Do you have an EBPV delete pedestal? That could cause the P0475.
The P1118 could be a bad sensor. However with all the issues around various sensors that have wires passing through that part of the harness, part of me wants to say you had a mouse in the valley chewing on stuff.
In any case, have you tried clearing DTCs to see which ones come back? I'm surprised you don't have P1209, P1210, P1211 or P1212 DTCs with the behavior we are seeing from your HP oil system.
 
Reply
Old Apr 9, 2021 | 04:46 PM
  #29  
powerstrokeN1's Avatar
powerstrokeN1
Thread Starter
|
Trailering
Joined: Apr 2021
Posts: 21
Likes: 0
Originally Posted by AllaboutMPG
I'll be glad to help with wire testing best i can from my phone if we get to that point. Should be fairly easy to test the part of the harness from icp to 42 pin connector. May someone at a computer to help us with wire prints. @Sous may be able when we need it.
Ok I had about 10 min. Today and put a meter in the icp pigtail and got the 5v on 1 prong and zero on both of the other prongs which I should have 12v 5v and ground. Now my ? Is how do I test the icp pigtail where it leaves the 42pin connector? Basically if we have correct reading at the 42pin it would be in the wires from there to the icp pigtail correct? If we don't have a good reading on the 42pin then I'll be chasing the issue between the pcm and the 42pin?


Weird

Something looks weird to me. Its looks like 3 wires coming out of 1. Has someone else done this or is this OEM the way it came?
 
Reply
Old Apr 9, 2021 | 05:47 PM
  #30  
coax9952's Avatar
coax9952
Laughing Gas
Joined: Aug 2014
Posts: 1,020
Likes: 9
From: Washington State
Be careful with that, those look a little "Melded" to me, actually, That whole bundle right there looks toasty, don't pull anything apart until you're ready to start patching right away...… I suggest going and getting a bottle of liquid tape before you separate any of those wires...…

and a roll of 3M 33 at the ready also for that matter.
 
Reply



All times are GMT -5. The time now is 07:39 PM.

story-0
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-1
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-2
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-3
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-4
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-5
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-6
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-7
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-8
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-9
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE