Electrical issue - Page 2 - JeepForum.com

Reply
 
LinkBack Thread Tools
post #16 of 21 Old 10-15-2013, 11:24 AM
LeePrather
Registered User
1978 CJ5 
 
Join Date: Mar 2013
Location: Jefferson
Posts: 624
Spark plugs?

LeePrather is offline  
Sponsored Links
Advertisement
 
post #17 of 21 Old 10-15-2013, 11:43 AM Thread Starter
sailracr
Registered User
1985 CJ7 
 
Join Date: Oct 2013
Posts: 32
I drove 3 1/2 hours to Tampa w/o issue before "something" happened. Before I left I replaced the plugs, wires, & distributor. A wire, sensor, or computer has failed I think, but which of the many choices it is I have no idea. I know for sure that I have constant 12v on the A0 and B0 stepping motor diagnostic but what is causing it I have no idea. There is some voltage on the O2 sensor (always less than .5v as far as I can tell) but maybe it's bad. I'm thinking to change it just to find out.
sailracr is offline  
post #18 of 21 Old 10-15-2013, 11:50 AM
LumpyGrits
Registered User
1985 CJ7 
 
Join Date: Jul 2010
Location: The Mojave Desert - Palmdale, Ca. U.S.A.
Posts: 6,554
Disconnect the O2 sensor, and see if it runs worst.
If it runs the same. Your O2 sensor is DOA.
LG

Have'n you along, is like loose'n 2 good men
LumpyGrits is offline  
 
post #19 of 21 Old 10-15-2013, 11:53 AM Thread Starter
sailracr
Registered User
1985 CJ7 
 
Join Date: Oct 2013
Posts: 32
I have disconnected it and there is no change in how it runs or action of the stepping motor. I'll just replace it and post the results.
sailracr is offline  
post #20 of 21 Old 10-15-2013, 12:41 PM
LumpyGrits
Registered User
1985 CJ7 
 
Join Date: Jul 2010
Location: The Mojave Desert - Palmdale, Ca. U.S.A.
Posts: 6,554
Start soaking the area with a penetrating oil NOW. They get really rusted in place.
On the re-install, apply copper anti-seize to the sensor's threads.
IF, this is the issue------Carry a spare O2 sensor with you in your tool kit.
LG

Have'n you along, is like loose'n 2 good men
LumpyGrits is offline  
post #21 of 21 Old 10-16-2013, 07:01 PM Thread Starter
sailracr
Registered User
1985 CJ7 
 
Join Date: Oct 2013
Posts: 32
Thanks to all for the help. I haven't managed to fix it yet but I have discovered that the previous owner has performed the "nutter" bypass meaning that the non functioning stepper motor, sensors, etc are expected. Ahh the joys of buying a jeep from the son of the mechanic who lives in California, rust free but the son knows nothing about the jeep, what's been done, etc. I've managed to get the jeep home so now it's EFI, new ignition, and engine rebuild time. I'm sure I'll ping you all from time to time and I'll post progress pix I go. Looking forward to really "getting to know" this jeep.
sailracr 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