Fordmods Logo

O2 sensors 


Page 1 of 1 [ 3 posts ] 

 Post subject: O2 sensors
Posted: Wed Dec 22, 2004 4:34 pm 
Fordmods Newbie

Age: 29

Posts: 1

Joined: 22nd Dec 2004

Location: sask
NSW, Australia

I have a 1995 Mercury cougar XR7 with the 4.6. I want to cut the cats off but there is O2 sensors before the cats and behind them. What will happen if i cut the cats off? will it just turn the check engine light on or will it does it screw with the fuel mixture or anything like that? any help would be appreciated




be careful of the feet you step on today, for they may be connected to the butt youll have to kiss tomorrow

Posted: Wed Dec 22, 2004 4:40 pm 
Site Admin
User avatar

Age: 33

Posts: 8831

Joined: 18th Dec 2002

Gallery: 6 images


Power: 270 rwkw

Location: Sydney
NSW, Australia

I'm not sure about emissions laws in your State, but you'll find that you can't simply cut the cats off. anyhow - that point aside, you will need the HEGO sensors!! You might want to go to an exhaust shop and have them relocate the HEGO sensors somewhere else in your system.

Without the HEGO sensors your car will probably run very rich.



WAG363: AUII LTD Supercharged 363 Dart Stroker [Supercharged 363 LTD Build]
WAGGIN: 2012 Volkswagen Passat Wagon - V6 4Motion.

Posted: Wed Dec 22, 2004 4:40 pm 
Getting Side Ways
User avatar

Age: 35

Posts: 8655

Joined: 5th Nov 2004

Gallery: 37 images

Ride: V8 EF Futura

Location: Adelaide CBD
SA, Australia

Hey mate.

Yeah setups like that have an oxy sensor either side of the cats in order for the ECU to ensure the cats are working effectively.

You cant really remove any oxygen sensors from the equation - ECU uses these readings when cruising to achieve a targeted air/fuel ratio.

If you must remove the cats, can you just weld in some tubing thru the middle of them?

As for the readings your ECU will get after doing so... anyone's guess! I imagine it would simply throw you a fault code saying "the cats are buggered"... which im sure would be of no suprise, lol.

EDIT: *4.9 EF Futura does not condone removing emission control devices* :wink:



I promise..... I will never die.

Fordmods Administration Group MINOR PUNKED

Display posts from previous:
Sort by  
 Page 1 of 1  [ 3 posts ] 

Who is online

Users browsing this forum: No registered users and 8 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum



It is currently Sat Oct 29, 2016 6:46 am All times are UTC + 11 hours



(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names