Another fuel pump issue -

LinkBack Thread Tools
post #1 of 4 Old 09-02-2013, 02:36 PM Thread Starter
Registered User
1993 YJ Wrangler 
Join Date: Sep 2010
Location: Columbus
Posts: 139
Another fuel pump issue

Trying to help a buddy figure out his fuel issue. When the key is on or off the fuel gauge is pegged at full, the pump wont prime when the key is turned on, I am only getting 8 volts back to the pump, relays are good, there isnt a ground at the ebrake, tore apart the pdc to clean everything up, checked every inch of wire from tank to engine, replaced the connector ends, tested pump and it work, we actually have it wired to a toggle switch right now so it can be driven. Changed out entire under dash harness due to a security system that way its fresh and good to go (plus that fixed mine). I think thats all ive tried, im sure im forgetting something. But I am at a wall, I am out of options besides swapping out the under hood harness. Oh yeah even tried another computer I had and still nothing. I know when I tested pins on the ecu I concluded the auto shutdown was being activated and have no clue why. Any help would be beyond appreciated as this has become a nightmare. Thanks

Unclejimbo is offline  
Sponsored Links
post #2 of 4 Old 09-02-2013, 05:58 PM
Web Wheeler
1989 YJ Wrangler 
Join Date: Apr 2008
Location: Detroit
Posts: 22,472
Que89YJ is online now  
post #3 of 4 Old 09-03-2013, 12:55 AM
Cash 4 Clunkers Survivor
rep-tile's Avatar
2004 WJ 
Join Date: Jul 2013
Location: bakersfield
Posts: 1,134
May be an issue with the ballast resistor; have you tried bypassing it?
rep-tile is offline  
post #4 of 4 Old 09-03-2013, 04:10 AM
Web Wheeler
1989 YJ Wrangler 
Join Date: Apr 2008
Location: Detroit
Posts: 22,472
The 8 volts is the fuel level. I will have him fill in the fix when it's done. Hard to do this one on the forum.
Que89YJ is online now  

Quick Reply

Register Now

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

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


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


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