Can't retrieve error codes (91 4.0l) - JeepForum.com
 
LinkBack Thread Tools
post #1 of 4 Old 02-17-2013, 02:44 PM Thread Starter
idskot
Registered User
1991 YJ Wrangler 
 
Join Date: Dec 2011
Location: Miami
Posts: 817
Can't retrieve error codes (91 4.0l)

I have a '91 4.0L Automatic. I've been able to get codes from it in the past, and until today I hadn't had a check engine light issue.

2 months ago a yoke strap busted, and since then I've been saving up the money / time to get an 8.8 installed. I started it up today to move it (I've been starting ti up every week or so and letting it idle for about 15 minutes during the same time I start up my boat.) I started it up today, started fine. Drove it the 10 or so feet that it needed to go when I realized the check engine light had stayed on. Any attempt to retrieve failed. (See picture)

I disconnected the battery for about 10 minutes. When I reconnected it, I got error codes (12, 33 -- which are normal) and nothing else. I started and it, again, had no check engine light. I turned it off. Came back to it a few hours later and the check engine light is back on. And, again, any attempt to get the code(s) doesn't work.

Anyone have insight?

https://www.youtube.com/watch?v=EkhuJq2DZCI

EDIT:: From what I can gather, it's running fine. I don't have any of my tools here to test fuel pressure or anything similar. But everything seems to be working..?

idskot is offline  
Sponsored Links
Advertisement
 
post #2 of 4 Old 02-17-2013, 05:28 PM Thread Starter
idskot
Registered User
1991 YJ Wrangler 
 
Join Date: Dec 2011
Location: Miami
Posts: 817
bump
idskot is offline  
post #3 of 4 Old 02-17-2013, 07:20 PM Thread Starter
idskot
Registered User
1991 YJ Wrangler 
 
Join Date: Dec 2011
Location: Miami
Posts: 817
Night bump?
idskot is offline  
 
post #4 of 4 Old 02-17-2013, 10:03 PM
jokerchief462
Registered User
1989 YJ Wrangler 
 
Join Date: Nov 2010
Location: Sin City
Posts: 2,881
Garage
Yeah I see what your getting. Try 3 on off and then on and see if it reads. Just a guess I got an 88 no codes but I did a lot of those checks working at AZ.

89YJ 2.5L TBI, AX-5, NP231 SYE, Ford 8.8, Yukon Grizzly, Tom Woods Shaft, 33" BFG T/As, 4" lift, Warn VR10000s.

AF Jeep Club Tail #184
jokerchief462 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com 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 e-mail 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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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 Off
Pingbacks are On
Refbacks are On

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