How to check ICP - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 03-15-2010, 05:05 PM
Compression Ignition Addict
 

Join Date: Dec 2009
Posts: 204
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
How to check ICP

How can I check my ICP for correct working parameters and what are the parameters? I do have access to a OBDII scan tool, volt meter etc. Thanks, Fred
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 03-15-2010, 05:11 PM
Compression Ignition Addict
 

Join Date: Aug 2009
Location: Sparta,Michigan
Posts: 437
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I have always been told if it is oily, it is bad. Other than that i believe it is fine.
Reply With Quote Quick reply to this message
  #3  
Old 03-16-2010, 06:08 AM
Compression Ignition Addict
 

Join Date: Dec 2009
Posts: 204
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
That's what I am hearing also, mine is oily and I cleaned it then drove 40 miles and checked it....oily again, I read another post that said if you unplug it while running and it dies it's bad....if it keeps running the computer is compensating.....just trying to find out if there are readings that I can monitor with a scanner or volt meter to varify it...Thanks, Fred
Reply With Quote Quick reply to this message
  #4  
Old 03-16-2010, 06:14 AM
Cynic
 

Join Date: Jun 2007
Location: Fort Worth, Texas
Posts: 11,194
Thanks: 0
Thanked 3 Times in 2 Posts
Feedback Score: 0 reviews
With AE, MT2500, NGS, ect... type scanners, you can view the ICP and IPR duty cycle.

If unplug the ICP, the PCM will default to 900psi and stay there. You could even drive the truck with 900psi. Won't run very well.


If the ICP is leaking oil, replace it. In some cases, you'll need to replace the connector to the harness as well.
Reply With Quote Quick reply to this message
  #5  
Old 03-16-2010, 06:16 AM
Compression Ignition Addict
 

Join Date: Aug 2008
Posts: 3,543
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
mine was dry when it went. I had it acanned and nothing came up on the Snap On. by dumb luck i did the 10k mod and fixed the problem i was having. replaced ICPpulled 10k and all was good.
Reply With Quote Quick reply to this message
  #6  
Old 03-16-2010, 06:38 AM
Compression Ignition Addict
 

Join Date: Dec 2009
Posts: 204
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
My truck seems very slugish now, bought it in Dec doesn't have the snap that my OBS had that I sold.....thinking the thing may have a bad ICP being it is oily....Fred
Reply With Quote Quick reply to this message
  #7  
Old 03-16-2010, 06:42 AM
Cynic
 

Join Date: Jun 2007
Location: Fort Worth, Texas
Posts: 11,194
Thanks: 0
Thanked 3 Times in 2 Posts
Feedback Score: 0 reviews
Sounds like a good place to start, but you're in the middle of a guessing game. Get a good scanner, check for codes. Drive around and monitor the live data stream.
Reply With Quote Quick reply to this message
  #8  
Old 03-16-2010, 08:00 AM
Compression Ignition Addict
 

Join Date: Dec 2009
Posts: 204
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I just un-plugged the ICP while running and it didn't change the engine at all....is this the meaning of a bad ICP?....Fred
Reply With Quote Quick reply to this message
  #9  
Old 03-16-2010, 08:13 AM
Cynic
 

Join Date: Jun 2007
Location: Fort Worth, Texas
Posts: 11,194
Thanks: 0
Thanked 3 Times in 2 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by Fred Swanson View Post
I just un-plugged the ICP while running and it didn't change the engine at all....is this the meaning of a bad ICP?....Fred
Nope. just means that the PCM is defaulting its ICP value. Your dash should lit up like a Christmas tree when you did that.


Like I said before, if it's leaking, it's a good place to start. But you are in a guessing game right now until you pull codes and drive it around watching the data stream for possible issues.

You said very sluggish.

Low boost\boost leak\exhaust leak to turbo\bad turbo
ICP issue
fuel pressure issue...
Injector issue...


I can go on.
Reply With Quote Quick reply to this message
  #10  
Old 03-16-2010, 08:31 AM
Compression Ignition Addict
 

Join Date: Dec 2009
Posts: 204
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Thanks for the info....yes I am told the correct way is to un-plug with engine off then start to see if it changes...I did that and maybe a little less responsive but not much if any diff. I need to make a boost leak detector to check the boots and continue from there, also like I said before the ICP is leaking some oil so I assume I should change it and be done with that possibility.....Fred
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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:

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
Display Modes

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



All times are GMT -8. The time now is 02:53 PM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors