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Aug 16, 2011 | 12:14 PM

#16

white99xjclassic

Seasoned Member

Joined: Jul 2011

Posts: 447

Likes: 0

From: Alliance, Ohio

Year: 1999

Model: Cherokee

Engine: 4.0

I'll just take my lumps and buy the cat. I've already got s buddy with some leftover o2 sensors he said I can pick through anyway so I'm already a little ahead anyway. No sense tempting fate.

Aug 16, 2011 | 12:36 PM

#17

Bustedback

CF Veteran

Joined: Feb 2010

Posts: 12,367

Likes: 23

From: Oroville, CA

Year: 1995

Model: Grand Cherokee

Engine: 4.0 with all of the noise and clatter

Quote:

Originally Posted by hunter9109

What they don't know don't matter I've done it before and Im going to keep doing it

Don't be a douchebag, you're only giving all of us that own Jeeps a bad name.

Aug 16, 2011 | 03:58 PM

#18

lynskynbnd

Senior Member

Joined: May 2011

Posts: 734

Likes: 0

Quote:

Originally Posted by white99xjclassic

How much effect will that have on how the motor runs would be my next concern of I don't run the simulator or the cat?

On that year no affect. the rear O2 is only used to check the cat.

Quote:

Originally Posted by Bustedback

Tampering with the catalytic coverter is a federal crime, not just a local issue. Just leave the damn thing alone and nobody gets hurt.

Off Road use only. Do what you want!

Quote:

Originally Posted by hunter9109

What they don't know don't matter I've done it before and Im going to keep doing it

Don't ask, don't tell.

Quote:

Originally Posted by CherokeeCountry

To remind everyone before a mod closes this thread: It is a violation of federal law to remove a cat or alter one, my point being it is also against forum rules to discuss illegal activity.

DUDE! we are talking about an off road use only mod. So therefore it's not illegal.

Aug 16, 2011 | 04:17 PM

#19

Bustedback

CF Veteran

Joined: Feb 2010

Posts: 12,367

Likes: 23

From: Oroville, CA

Year: 1995

Model: Grand Cherokee

Engine: 4.0 with all of the noise and clatter

Where does it say this is for a trail only rig?

Aug 16, 2011 | 04:46 PM

#20

lynskynbnd

Senior Member

Joined: May 2011

Posts: 734

Likes: 0

Quote:

Originally Posted by lynskynbnd

The Converter uses O2 in ithe catilizing process and the front and rear O2 sensors read differently when the Cat is working. With a strait pipe the readings will be the same and the ECM will know the cat isn't working and set P0420. Check Engine lamp will turn on. A sensor simulator basicly sends a false signal to the ECM to fool it.
I found O2 simulators on line a couple years ago for $40-$50. They are not leagal for street use.

Quote:

Originally Posted by Bustedback

Where does it say this is for a trail only rig?

See in red above and quit whining