Bypassing o2 sensor

Reply Subscribe

Thread Tools

Search this Thread

Dec 20, 2011 | 08:35 PM

#16

bsmith97xj

Member

Joined: Jul 2011

Posts: 185

Likes: 0

From: Hutchinson Ks

Year: 1997

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by mr baer

3 of the 4 Jeeps in my family have the wire to the cat cut, no check engine light. Mines OBD-I the others are OBD-II
If your getting a code for the O2 sensor itll be the one just on the exhaust side of the manifold

Your CEL bulb is burned out!

Dec 20, 2011 | 09:05 PM

#17

mr baer

Seasoned Member

Joined: Apr 2010

Posts: 322

Likes: 0

From: Tauranga, New Zealand

Year: 1994

Model: Cherokee

Engine: 4.0L

Quote:

Originally Posted by bsmith97xj

Your CEL bulb is burned out!

All the CEL lights come on at key on.
Also

Dec 20, 2011 | 10:20 PM

#18

audioal69

Thread Starter

Seasoned Member

Joined: May 2011

Posts: 330

Likes: 1

Model: Cherokee

Quote:

Originally Posted by mr baer

I would go into detail but last time I did I got a warning because it is not legal in the US

Well send me a pm or email me at audioal69@yahoo.com and tell me all the details

Apr 22, 2020 | 08:13 AM

#19

Jerry Conners

Newbie

Joined: Apr 2020

Posts: 3

Likes: 0

From: Columbus Ohio

Year: 1996

Model: Cherokee (XJ)

Engine: 4.0

Check this out...

My exact problem. I found out this morning that there's "sensor foolers" so google it. Interesting stuff. I bought my 96 xj with the converter gone. Runs like crap like it's dumping gas in. Starts off fine. It's spuratic.

Apr 22, 2020 | 08:22 AM

#20

00t444e

CF Veteran

Joined: Nov 2015

Posts: 3,636

Likes: 469

From: Southern OH

Year: 1997

Model: Cherokee(XJ)

Engine: 4.0

The front o2 sensor is what controls your air fuel ratio, removing the converter doesn't affect it at all. The rear o2 sensor if you have one is what monitors the converter, all it will do is trip a code if it's bad or the converter is missing it has no affect on how the engine runs.