OBD2 problems, Check Engine light on! - 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 10-05-2011, 05:18 PM
Powerstroke.org Fanatic
 

Join Date: Aug 2011
Posts: 92
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
OBD2 problems, Check Engine light on!

I cant pull codes! I've used all kinds of scanners including an auto enjunity, and none of them can connect! I'm at a loss! I've got power to both cigarette lighters and it seems I have it to the OBD2 port. With the cheaper scanners, I tried scanning it when it was running and it killed the truck so I know there is some sort of interaction, but I cant figure out what the deal is.

It used to come on only once in a while when the motor was cold, but now it is on all the time. It has a lope idle randomly at stop lights, if I let the clutch out and move forward a few feet it smooths out. Some times it runs just fine. It seems to do it less when my chip is in the stock position.

If anyone has any ideas I would be grateful! It has been about 2,500 miles since my oil change. (Rotella 15-40w and Lucas oil additive)
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 10-14-2011, 06:39 AM
Powerstroke.org Fanatic
 

Join Date: Aug 2011
Posts: 92
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I pulled the chip, same problem. It ran just like it does when its on the stock tune, check engine light was still on.

I also put a different CPS sensor in, no change.

I put a new air filter on (mine was pretty dirty) and it ran a bit smoother and spools a bit quicker, but still has a rough idle at times and has the check engine light on.

Thanks for any more input! I would really like to figure out why the obd2 scanner doesn't work. Any ideas on how to fix that? Any wright ups on how to test or diag it?
Reply With Quote Quick reply to this message
  #3  
Old 12-19-2011, 05:33 PM
Powerstroke.org Rookie
 

Join Date: Jul 2011
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
im in the same boat any more help for diagnosis would be greatly appreciated.
Reply With Quote Quick reply to this message
  #4  
Old 12-20-2011, 10:58 AM
Powerstroke.org Rookie
 

Join Date: Aug 2011
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
After taking mine to ford because of the same problem they told me it was a bad map sensor.
Reply With Quote Quick reply to this message
  #5  
Old 12-20-2011, 02:01 PM
Transmission or Injectors
 

Join Date: Jan 2008
Location: Saskatoon, SK
Posts: 738
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
Does the autoenginuity have the Ford enhanced package? if it does not, it will not connect to a powerstroke engine. How advanced are the other scanners you have tried? Basic scanners will not work on the 7.3 either
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 07:53 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