Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

Idle issues

Thread Tools
 
Search this Thread
 
Old May 23, 2013 | 04:59 PM
  #1  
93XJake's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2012
Posts: 90
Likes: 0
From: Hartford, WI
Year: 93
Model: Cherokee
Engine: I6
Default Idle issues

so, theres a few things going on right now that are either causing or relating to my idle issues.
1) Ive been throwing check engine lights. I can run them at school(we have an OBDI scanner) and they have all been "o2 sensor shorts, voltage over max"
2) yesterday i was idling high in park, as well as while in gear. I was able to idle up the road and get to 15 mph without putting my foot on the gas.

so im wondering if anyone else is having/had these issues how could i fix the o2 sensor getting to much voltage? any help would be greatly appreciated!
Reply
Old May 23, 2013 | 07:07 PM
  #2  
Radi's Avatar
CF Veteran
 
Joined: Apr 2012
Posts: 5,302
Likes: 23
From: Wisconsin
Model: Cherokee
Default

What are the exact codes you are getting?
Might check the O2 sensor wiring and connectors, TPS and IAC over too.
Reply
Old May 23, 2013 | 09:40 PM
  #3  
93XJake's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2012
Posts: 90
Likes: 0
From: Hartford, WI
Year: 93
Model: Cherokee
Engine: I6
Default

I want to say code 21 but I'm not exactly sure how I find it on our scanner. The code description is "o2 sensor short. Voltage over max." The TPS was replaced last November so I doubt it's that unless they can go bad that quickly. Il check the connectors tomorrow. Could it be a bad ground for the o2 sensor? If so how could I fix that
Reply
Old May 23, 2013 | 11:27 PM
  #4  
XJOhio's Avatar
Newbie
 
Joined: Nov 2011
Posts: 14
Likes: 0
Model: Cherokee
Default

Also, check your wiring from the O2 sensor all the way up to where it goes over your engine. Sometimes it can get misplaced and end up resting on the exhaust manifold and the insulation gets burned off leaving just bare wires.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Tcq192
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
11
Dec 30, 2025 02:21 PM
jurazov
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
12
Jul 20, 2023 04:13 AM
Jamesmon4
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
1
Aug 16, 2016 09:04 PM
WomanNeedsJeepExpertise
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
21
Sep 10, 2015 06:01 PM
Ella15
Cherokee Chat
0
Sep 4, 2015 05:18 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 



All times are GMT -5. The time now is 12:49 PM.