Cat

[bmwrp8]

took out my cat now my check control display "Catalyst" how can i get rid of that? I mean is there any sensor i could bypass or something? tnx.:D

[neil_004]

O2 sensor simulator would get rid of it. Not sure if it would mess with your fuel map or not.

[RallyD]

I just did some crazy crap yesterday as an experiment.
I have a Mazda van with a bad cat. It kept triggering the MIL.
Here's what I did:
Went to local pep-boys and in the HELP! section i got spark plug anti-fouler 18mm. Drilled one out to fit the 02 sensor then screwed it into another anti-fouler. Reinstalled the o2 sensor with its new 'shield' and the light doesn't come on anymore. It might work for you and it was only $4.

[bmwrp8]

thanks a lot guys for the reply.unfortunatly i can't find one so i improvise...now its gone thanks again:)

[bmwrp8]

took out my cat now my check control display "Catalyst" how can i get rid of that? I mean is there any sensor i could bypass or something? tnx.:D

sorry to revive an old thread but i still have this problem, does anyone have some ideas?

[shogun]

http://forums.evolutionm.net/showthread.php?t=215795
http://www.energeticforum.com/renewable-energy/1387-o2-sensor-modification-using-spark-plug-non-foulers.html
http://forums.evolutionm.net/showthread.php?t=114931
http://www.scionlife.com/forums/viewtopic.php?t=55631
http://www.preludeonline.com/f28/homebrew-o2-simulator-simple-cheap-effective-168992/

It's pretty much a spacer you put between the o2 sensor that goes on your cat. When you install test pipe a cel comes up. The spacer moves the sensor out of the direct flow of the exhaust. Fooling the system.
http://www.preludeonline.com/f28/whats-anti-fouler-mod-237059/
http://www.scionlife.com/forums/viewtopic.php?t=101069

Original purpose:

Spark Plug Non-Fouler
Spark Plug Non-Fouler Operation:
A fitting used on the electrode end of a spark plug. It minimizes exposure of the plug electrode to oil fouling in the combustion chamber. It raises the spark plug higher in the chamber and away from high concentrations of fouling agents.

[attack eagle]

thouse antifouler hacks only work if the sensor itself is ok.

if the sensor is bad, or you have no bung for it an a replacement pipe you can try this.

http://www.vfaq.com/mods/O2bypass.html

[bmwrp8]

thouse antifouler hacks only work if the sensor itself is ok.

if the sensor is bad, or you have no bung for it an a replacement pipe you can try this.

http://www.vfaq.com/mods/O2bypass.html

i'll try them again. thanks for the input guys:)

attack eagle=> if the sensor is bad and we'll just bypass it, is it ok? i mean won't there be any idle issues?