Turn off Maintenance Required Idiot Light - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > Turn off Maintenance Required Idiot Light

Rockridge 4WD IS Taking Zone Offroad Suspension Lift Kits ZONE 4.25" combo lift for TJ available at Rockridge4wG2 Disc Brake Conversion Kit for Jeep Wrangler YJ TJ LJ Ch

Reply
Unread 10-23-2001, 02:39 AM   #1
Sarge37
Registered User
2005 TJ Wrangler 
 
Join Date: Oct 2001
Location: Alabama
Posts: 165
Turn off Maintenance Required Idiot Light

Hey people, Im new to this forum and have already learned alot. I just bought a 91 YG 6 banger, 5 speed. Bone stock right now. Was just wondering how to turn off the maintenance required light. I unplugged the battery thinking that would work but no go. Oh yea, I did find the rear CVC or PCV valve vacume hose not connected. Re-connected it, runs lots better, but still that damn idiot light.
Any help would be appreciated.

Ok: Found the answer courtesy of BC4x4.com

The MAINT REQ light is based on a timer, NOT feedback from any
sensors. It is telling you that it's time to change the O2 sensor,
even though there may be nothing wrong with it.

4.0L YJs' computers contain the timing mechanism and must be
re-set by the dealer (or you could just unplug the bulb). 4.2L YJs
using a mechanical timer mounted to the driver's side firewall
(under the dash). With some patience and tinkering, you can
reset it.

__________________
"If It Aint Broke, Fix It Till It Is!!!!!"
05 TJ Rubicon, 4.0L, 6 Speed.
07 Ram 1500 Quad Cab
Sarge37 is offline   Reply With Quote Quick reply to this message
Unread 10-23-2001, 05:03 AM   #2
bonehead99
Registered User
1994 YJ Wrangler 
 
Join Date: Jun 2001
Location: T Town, Ohio
Posts: 286
go here Allpar.com
This will tell you why the idiot light is coming on.
__________________
94 YJ 4.0 HO 3sp Auto, 3" RC Lift, 1" Shackles, 3" BL, 31x10.50, Pacesetter Armor-Coated Header, Homemade Air Intake w/ K&N
bonehead99 is offline   Reply With Quote Quick reply to this message
Unread 10-23-2001, 09:00 AM   #3
jmsjeep
Registered User
 
Join Date: Feb 2001
Location: plymouth, MA usa
Posts: 85
If this is your emissions/engine maintenance light it comes on after you drive 85,000 miles telling you to change your oxygen sensor. You are suppose to replace the module at the same time to start the cycle over again. It is behind your carpet near the gas pedal, you can unplug it there if you just want to shut the light off.
__________________
I wonder were that dirt road goes?

'89 YJ 4 banger all stock, replacing all the worn out guts first, 97 grand cherokee limited
jmsjeep is offline   Reply With Quote Quick reply to this message
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.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
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


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.