IPR/ICP Help
Lead Driver
Joined: Jul 2017
Posts: 6,854
Likes: 2,332
From: WV
Originally Posted by JKoski
I think I'll replace the IPR, then tackle the ICP since it's new.
You could look over the ICP wiring. It’s possible the wires have an open hidden back under the loom.
I’d take whatever direction Cleatus recommends over my suggestions though!
Lead Driver
Joined: Jun 2004
Posts: 6,325
Likes: 585
From: Amarillo, TEXAS!
Did you change the configuration of the ICPV PID so it actually reads volts? If you did a 0.0 volt reading is normal with the ICP sensor disconnected. Connected, it should read somewhere around 0.24 volts, key on engine off.
Thread Starter
|
5th Wheeling
Joined: Apr 2021
Posts: 39
Likes: 7
Not yet. Going to do that today and check the wiring to the ICP. I'll post results later today. Thanks.
Thread Starter
|
5th Wheeling
Joined: Apr 2021
Posts: 39
Likes: 7
Just ordered IPR from Riff Raff. I'll update after the install. Thanks for your help.
Thread Starter
|
5th Wheeling
Joined: Apr 2021
Posts: 39
Likes: 7
I changed the PID to volts. ICP connected 2.2 volts .ICP disconnected 0.00 volts.
Lead Driver
Joined: Jun 2004
Posts: 6,325
Likes: 585
From: Amarillo, TEXAS!
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Thread Starter
|
5th Wheeling
Joined: Apr 2021
Posts: 39
Likes: 7
miles. If the swap doesn't make a difference, I start looking for the short.
Thanks for your inputs.
Lead Driver
Joined: Jun 2004
Posts: 6,325
Likes: 585
From: Amarillo, TEXAS!
First, just make sure you didn't misplace the decimal point and it's 2.2 volts, not actually 0.22 volts. It'd suck to start tearing into wiring harnesses because of a mistake like that.
Thread Starter
|
5th Wheeling
Joined: Apr 2021
Posts: 39
Likes: 7
I'll check again. I'm pretty sure it was 2.2 volts. I hate wiring issues. I have a Mazda 5 with a wiring problem. But the truck comes first.
Thread Starter
|
5th Wheeling
Joined: Apr 2021
Posts: 39
Likes: 7
Hello to all,
Today was a great success as the truck is back up and running. This morning, I replaced the IRP with one from RiffRaff. The ICP issue is gone and the DTCs are no longer there. Here's the Forscan results:
ICPV .22 Volts, IPR 14.84% and ICP PSI 0.00 KOEO. ICP Connected.
Disconnected ICP 0.00 Volts and ICPV 0.00 Volts KOEO.
Engine running: ICP 470-485 PSI, IPR 13.28%-11.33% and ICPV at .80Volts.
Big thanks to all who provided guidance and helpful suggestions. I happy it's running again with no codes.
Jeff
Today was a great success as the truck is back up and running. This morning, I replaced the IRP with one from RiffRaff. The ICP issue is gone and the DTCs are no longer there. Here's the Forscan results:
ICPV .22 Volts, IPR 14.84% and ICP PSI 0.00 KOEO. ICP Connected.
Disconnected ICP 0.00 Volts and ICPV 0.00 Volts KOEO.
Engine running: ICP 470-485 PSI, IPR 13.28%-11.33% and ICPV at .80Volts.
Big thanks to all who provided guidance and helpful suggestions. I happy it's running again with no codes.
Jeff
Lead Driver
Joined: Oct 2005
Posts: 6,129
Likes: 1,919
From: Ponca City, OK
First let me say, the old adage is true: If it ain't broke, don't fix it. My truck is an early 99 7.3. 455,000 miles and was running ok. I decided to do some maintenance and decided on replacing the ICP and the IPR. I was surprised by the cost of an IPR so I decided to rebuild it instead of replacing it. I ordered the ICP and IPR rebuild kit from RiffRaff. The parts arrived and I went to work. I pulled the IRP out and following the instructions found at Custom Works (You Tube) I disassembled, cleaned and rebuilt the IPR and installed. Next, I removed and installed the new ICP. Started the truck and I have to say, it did start much better. But after about 5 seconds, the engine started to romp, romp, romp, sounded and felt like I had a racing cam installed. The engine set 3 codes. P2111 ICP higher/lower than desired. P1209 ICP pressure peak fault and P1282 IPR excessive pressure.
I contacted Clay at Riffraff and he stated there is air in the system and the truck needs to have some miles put on to purge the air. I took the truck out and drove it 20 miles Highway up to 70 MPH and then a backroad up to 55MPH and returned home. The engine still has the romp. I did notice improved engine performance. However, at idle I still have that engine romp. I pulled the OBD codes. The only code left is the P1211.
I called Clay again and he suggested to unplug the ICP which I did and in doing so, that made no difference. Question: Is the ICP bad? Where do I go from here? I do have the Forscan software loaded in the computer. I'm looking for some direction here to solve.
Help is always appreciated.
Jeff
I contacted Clay at Riffraff and he stated there is air in the system and the truck needs to have some miles put on to purge the air. I took the truck out and drove it 20 miles Highway up to 70 MPH and then a backroad up to 55MPH and returned home. The engine still has the romp. I did notice improved engine performance. However, at idle I still have that engine romp. I pulled the OBD codes. The only code left is the P1211.
I called Clay again and he suggested to unplug the ICP which I did and in doing so, that made no difference. Question: Is the ICP bad? Where do I go from here? I do have the Forscan software loaded in the computer. I'm looking for some direction here to solve.
Help is always appreciated.
Jeff
Thread
Thread Starter
Forum
Replies
Last Post
RonMacLeod
1994.5 - 1997 7.3L Power Stroke Diesel
7
Jul 27, 2019 09:54 PM