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.

cel = po138 questons?

Thread Tools
 
Search this Thread
 
Old 11-12-2009, 07:32 PM
  #1  
Junior Member
Thread Starter
 
dieselfreek's Avatar
 
Join Date: Oct 2009
Posts: 48
Likes: 0
Received 0 Likes on 0 Posts
Model: Cherokee
Default cel = po138 questons?

ok maybe some body can help me?,i got this jeep recently on a trade and really like it!! it needs a little tlc to bring it up to my standards but first i have to get rid of this stupid check engine light!!! it is a po138 code and it has 2 new o2 sensors already and no cat,i am in fl. so somebody already took it off and ran a single chamber flowmaster exhaust! but i did the DIY sensor simulator the other day and that didnt work?tried the battery disconect also and nothing,thinking about one of the sims on ebay,and the funny part is it runs better with the light on vrs it off? when i clear code light goes off but when cold it bucks and and runs like poop for a while then its fine,but wheni dont clear code it starts and runs fine when cold no bucking? any help would be great,it says bank1 sensor 2 voltage is high on scanner? thanks for any sugestions?
Old 11-12-2009, 08:39 PM
  #2  
Newbie
 
junkyarddog's Avatar
 
Join Date: Nov 2009
Posts: 28
Likes: 0
Received 0 Likes on 0 Posts
Year: 1995
Model: Cherokee
Engine: 4.0 HO
Default

unplug the check engine light.. lol jkjk... I say put the cat back on... 96 and up cars and trucks have obdII with 2(or more) o2 sensors and when you take the cat out outs the light on.. P.S you don't really get alot of power by removing the cat anyways. i have done it before.. it's just louder..
Old 11-13-2009, 05:15 PM
  #3  
Junior Member
Thread Starter
 
dieselfreek's Avatar
 
Join Date: Oct 2009
Posts: 48
Likes: 0
Received 0 Likes on 0 Posts
Model: Cherokee
Default

it keeps blowing the 15amp fuse under the hood?????
Old 11-13-2009, 08:42 PM
  #4  
Junior Member
 
kswiencki's Avatar
 
Join Date: Oct 2009
Location: Rhode Island
Posts: 90
Likes: 0
Received 0 Likes on 0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
Default

I'm guessing the fuse for the O2 heaters??? the simulator is shorting out the circuit...
Old 11-13-2009, 08:58 PM
  #5  
Junior Member
Thread Starter
 
dieselfreek's Avatar
 
Join Date: Oct 2009
Posts: 48
Likes: 0
Received 0 Likes on 0 Posts
Model: Cherokee
Default

Originally Posted by kswiencki
I'm guessing the fuse for the O2 heaters??? the simulator is shorting out the circuit...
it did it before sim.and the sim is just a extension of the o2 nothing electrical
Old 11-14-2009, 07:32 PM
  #6  
Junior Member
Thread Starter
 
dieselfreek's Avatar
 
Join Date: Oct 2009
Posts: 48
Likes: 0
Received 0 Likes on 0 Posts
Model: Cherokee
Default

it was a bad ground on the battery problem fixed now??
Old 11-14-2009, 07:47 PM
  #7  
Caracticus Potts The Mod
 
Willys55's Avatar
 
Join Date: Jul 2009
Location: Hainsville, NJ
Posts: 5,298
Received 9 Likes on 8 Posts
Model: Grand Cherokee
Cool

cool
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
4WD4EVER
Modified XJ Cherokee Tech
28
07-28-2023 07:12 PM
ra.stewart
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
9
02-15-2021 01:47 PM
JayneCobb
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
26
08-11-2020 03:22 PM
tleed
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
3
10-04-2015 01:20 PM
logan.stove
Modified XJ Cherokee Tech
2
09-25-2015 10:36 AM

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


Quick Reply: cel = po138 questons?



All times are GMT -5. The time now is 11:36 PM.