CEL came on

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Oct 4, 2019 | 04:46 AM

jpk

Thread Starter

Member

Joined: May 2010

Posts: 235

Likes: 13

Model: Cherokee

CEL came on

My 96 XJ's CEL came on last night. It has 195k on the clock. Running fine otherwise. Any thoughts as to what it might be> I recall when I had my 92 the CEL came on automatically at around 95k. Is this a similar event? XJ seems to be running fine.

I do have a wireless plug in OBD2 device that I can view the results on my phone. I'll check it out later today.

Last edited by jpk; Oct 4, 2019 at 05:04 AM.

Oct 4, 2019 | 06:22 AM

TrailerTrash

CF Veteran

Joined: Jun 2017

Posts: 2,215

Likes: 635

From: Hangover, PA

Year: 1998

Model: Cherokee(XJ)

Engine: 4.0L

Without checking the code or having noticable issues there is no way to tell.

Oct 4, 2019 | 06:57 AM

tjwalker

CF Veteran

Joined: Nov 2010

Posts: 5,839

Likes: 116

From: In the middle of Minnesota!

Year: 1999

Model: Cherokee

Engine: 4.0

Hundreds of possibilities. Strategy is always the same. Pull codes, post them here and then take a "testing based approach" on determining root cause.

Interpreting codes is not always straight forward.

Oct 4, 2019 | 07:19 AM

caged

CF Veteran

Joined: Nov 2008

Posts: 7,874

Likes: 100

From: Northern Ontario, Canada

Year: 1990, 1999, 2000

Model: Cherokee

Engine: 4.0

most likely a failed O2 sensor, but only way to be sure is to pull the codes.

Oct 5, 2019 | 04:08 AM

awg

CF Veteran

Joined: Mar 2016

Posts: 3,816

Likes: 725

Year: 96

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by jpk

I do have a wireless plug in OBD2 device that I can view the results on my phone. I'll check it out later today.

not all OBD2 reader will work with '96 XJs, even the ones that will take some fiddling to get set, so be aware
something to do with early protocols of OBD2...my 10/96 worked fine, but the 4/96 called out "OBD1"..until I got a BAFX scanner