P2285 - Ford Powerstroke Diesel Forum
 
LinkBack Thread Tools Display Modes
post #1 of 7 Old 07-22-2014, 07:28 PM Thread Starter
Premium Member
 
Join Date: Jul 2014
Posts: 13
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
P2285

Hello folks! I've been creeping around this site a few years and finally decided to contribute to the site and join. Btw its a great site! Anyhow.....

I have my lovely 2003 6.0. Truck has been great to me over the past 5 years. The other day I got p2285 which is ICP circuit out of range low. I have replaced ICP and pigtail harness. Also swapped out IPR with known good one. It has all the symptoms of a bad ICP. (rough idle, rpm jumping around) I noticed that desired ICP stays constant and the actual ICP jumps around desired ICP. Sometimes its quite a bit, like 300 psi different. I noticed some weird things though also. Like FICM_VPWR jumps around a lot. 11.99 volts to 13.2. I put a multimeter on battery and it would stay around 13.2.

I will stay on track with the fault code though. Service manual states to check ICP VREF circuit pin 2 and signal return pin 1 (which I will do and report back)

Anybody been down this road before and made it to PCM replacement?
6.0keckals is offline  
post #2 of 7 Old 09-09-2014, 09:48 AM Thread Starter
Premium Member
 
Join Date: Jul 2014
Posts: 13
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Sorry it took so long to get back.

Checked for ref voltage to ICP. 5 volts was present. Checked ground- ok. Jumped ref voltage to signal wire. Read 5 volts on scantool. Shook wiring and inspected. All ok. When it isnt acting up it does seem a little low on power and has some lag time on RPM ( more than normal). I cant see a HPOP causing a problem like this since its not acting up all the time. It doesnt matter if its hot or cold. If it dies it will start right back up.

How interchangeable is PCM on the 6.0s? I might try to swap one to see.

Anyone else have any other good ideas?
6.0keckals is offline  
post #3 of 7 Old 09-09-2014, 03:12 PM
Compression Ignition Addict
 
Join Date: Jul 2013
Posts: 357
Thanks: 0
Thanked 19 Times in 19 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
ive changed a lot of them, there are even some trucks without the original PCM. Your ABS will stop working and the TCM is going to re learn, but it goes back to normal when you put the original PCM into it.

2007 F-450 6.0L
Blue Spring Mode (Home Made Spring)
Home Made 1/4 Iron Sheet Front Bumper
No Intercooler
Degas Bottle on Passenger Side firewall
Physical Gauges (HPO, LPO, Pyro, ECT, AMP)
OBS F-450 Long Bed
JorgeCanek is offline  
post #4 of 7 Old 09-09-2014, 03:13 PM
Compression Ignition Addict
 
Join Date: Jul 2013
Posts: 357
Thanks: 0
Thanked 19 Times in 19 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Did you checked for the sign wire voltage while the turck is KOER?, is it the same voltage reading you get on the voltimeter and scantool?

2007 F-450 6.0L
Blue Spring Mode (Home Made Spring)
Home Made 1/4 Iron Sheet Front Bumper
No Intercooler
Degas Bottle on Passenger Side firewall
Physical Gauges (HPO, LPO, Pyro, ECT, AMP)
OBS F-450 Long Bed
JorgeCanek is offline  
post #5 of 7 Old 09-10-2014, 07:24 PM Thread Starter
Premium Member
 
Join Date: Jul 2014
Posts: 13
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Jorge, thanks for the reply. No I have not checked signal voltage with KOER. All tests I have done have been KOEO. I unplugged the ICP and the truck runs fine besides the fault code. I better inspect my wiring again? I know when its not plugged in it will use "calculated" pressure from the PCM.
6.0keckals is offline  
post #6 of 7 Old 09-10-2014, 10:59 PM
Island Dweller

 
Qholic's Avatar
 
Join Date: Sep 2011
Location: Navarre Beach, FL
Posts: 1,383
Thanks: 168
Thanked 66 Times in 61 Posts
Mentioned: 1 Post(s)
Quoted: 41 Post(s)
Feedback Score: 0 reviews
What is your FICM voltage? Another thing is that 13.2 volts seems to be low if the truck is running and no power hungry accessorys are on. These trucks are very sensitive to less than stellar electrical signals

Shawn
2007 F-350 King Ranch FX4 LB Tow Boss DRW
SCT LiveWire, Atlas 80, WPE tunes, Blue Spring, Holders 175/30 injectors, KC Turbos Stage 2, Magnaflow Dual Tip 5", AMSOIL BMK-21, PMM Coolant Filter, Zoodad MOD, CCV MOD, AFE Pro Dry S OER Filter, Final Charge ELC, 08 style mirrors, SAP Diesel DD Solenoid, Derale Transmission Pan, Mishi CAC Tube and Boots, High Idle Mod, more to come..,
Qholic is offline  
post #7 of 7 Old 09-11-2014, 05:52 AM
Compression Ignition Addict
 
Join Date: Jul 2013
Posts: 357
Thanks: 0
Thanked 19 Times in 19 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
What you want to know is the voltage that your ICP sensor is sending to the truck. at idle, it should be about .8V

2007 F-450 6.0L
Blue Spring Mode (Home Made Spring)
Home Made 1/4 Iron Sheet Front Bumper
No Intercooler
Degas Bottle on Passenger Side firewall
Physical Gauges (HPO, LPO, Pyro, ECT, AMP)
OBS F-450 Long Bed
JorgeCanek is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome