please help!!!! 97 zj died and wont restart - Page 2 -
LinkBack Thread Tools
post #16 of 19 Old 04-01-2013, 04:38 AM
Registered User
1998 ZJ 
Join Date: Dec 2012
Location: Birmingham
Posts: 62
Easy way to find out if its your O2 wires is just to disconnect them. I had the same problem when l ripped my exhaust off.

Simply disconnected the O2 sensor next to the cat and replaced the fuse. Jeeped started first time. Tbh I'm still running with no O2 sensor connected as my mpg hasn't got any worse. 4.0 in my case.

Adam86 is offline  
Sponsored Links
post #17 of 19 Old 04-01-2013, 08:03 AM
Registered User
2004 WJ 
Join Date: Dec 2009
Location: Dingmans Ferry
Posts: 2,286
That fuse powers the PCM to supply the 5v necessary for all of the sensors that are monitored by the PCM. If the fuel pump runs continuously with the key on engine off, the fuse is either blown or you have fried the PCM. Locate the problem!!!!! Don't keep replacing the fuse or you will fry the PCM.
The sensors include the cam, crank, tps, map,engine coolant, engine air temp and trans sensor.
Check the routing of all the wires to those sensors and pay close attention to the o2 wire routing near the exhaust manifold. Many guys don't route the wires back to their original place when replacing parts.
JS97ZJ is offline  
post #18 of 19 Old 04-02-2013, 03:48 PM Thread Starter
Registered User
1997 ZJ 
Join Date: Oct 2012
Location: el cajon
Posts: 63
so my fuel pump is running continuously and i noticed when i do have the key on the overdrive off button light stays on and no matter if i just push it for a second or i hold it it stays on. still nothing obvious that i can see both from under the hood and all the way under the jeep
ryanlawhon is offline  
post #19 of 19 Old 04-04-2013, 06:24 PM
Registered User
Join Date: Mar 2013
Posts: 66
I cant remeber what fuse was blowing but one of those under the hood when my O2 sensor plug fell on the drive shaft. Thanks to the guys here at jeepforum! Same symptoms tho!
98lmtdJay is offline  

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