Code problem solved. - 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 09-30-2012, 10:57 AM
Powerstroke.org Fanatic
 

Join Date: Mar 2010
Posts: 129
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Code problem solved.

Posted the other day about a code problem I's having on a 99 7.3.
Had a long term cold miss that dissappeared when warm.
replaced four injectors 2,3,5 and 8. After installation buzz tested injectors
and kept getting 1272,73,75 and 78 codes. How could I have four injector codes and truck was running great? I had someone else scan it they got same codes, they saiad wiring or IDM was going bad? (Yeah right).
I rechecked injectors and UVCH externally using a adapter I made, all checked good. I did several hours of inline reading and found there's a sequence you have to use sometimes when codes won't clear out of the IDM.
I performed the reset sequence and NO more codes buzz test passed.
I have read lots of post online and this seems to be a problem. Most have wound up buying harness's and IDM needlessly. If it runs good don't always believe the buzz test.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 09-30-2012, 11:36 AM
Compression Ignition Addict
 

Join Date: Feb 2009
Location: Nacogdoches, TX
Posts: 11,041
Thanks: 0
Thanked 12 Times in 12 Posts
Feedback Score: 0 reviews
So what was the sequence? Not much help if we don't have it.
Only "reset" I know of if D/C the batts, drain all the power from the system, and start over.
Reply With Quote Quick reply to this message
  #3  
Old 09-30-2012, 12:12 PM
Powerstroke.org Fanatic
 

Join Date: Mar 2010
Posts: 129
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by jesilvas View Post
So what was the sequence? Not much help if we don't have it.
Only "reset" I know of if D/C the batts, drain all the power from the system, and start over.
Depends on if your using a ford or aftermarket scan tool. I have a MAC scan tool

Aftermarket Scan Tools

Aftermarket scan tools may exhibit the same issue as the Ford IDS software described above. In this case it is recommended to Clear DTCs then re-run the self test to determine if DTCs are present. If DTCs appear to be persistent it may be necessary to remove the scan tool, reinstall and recheck for DTCs by re-running the self-test.

Ford 7.3L Power Stroke
Reply With Quote Quick reply to this message
  #4  
Old 09-30-2012, 12:31 PM
Compression Ignition Addict
 

Join Date: Feb 2009
Location: Nacogdoches, TX
Posts: 11,041
Thanks: 0
Thanked 12 Times in 12 Posts
Feedback Score: 0 reviews
So just clear the codes and see if they're still there?
Thought it was some special reset type sequence.

Same thing can be done by removing power from the PCM and resetting it that way.
Reply With Quote Quick reply to this message
  #5  
Old 09-30-2012, 02:28 PM
Powerstroke.org Fanatic
 

Join Date: Mar 2010
Posts: 129
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by jesilvas View Post
So just clear the codes and see if they're still there?
Thought it was some special reset type sequence.

Same thing can be done by removing power from the PCM and resetting it that way.
Sure won't disconnected batteries for over an hour and the codes were still there when I did a buzz test. Ther's a difference in self-diagnostics and readinfg codes. The IDM stores them or does something totaly different, don't ask me what, I don't know. I know for two days I kept getting buzz test codes on new injectors. When I did buzz test and disconnected the scanner and then clered and retested the codes were gone. If you'll read the link I posted you will see it states persistant codes after injector replacement. I had mone tested witha mac scanner and a ford pc type scanner both had buzz codes. And notehr machine would clear them until I did procedure in link.
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 11:55 AM.


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