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Available at your local automotive store. Spark Plug Non Fouler PN 42009 ($4.99)
You now need to drill out 1 of the non foulers using a 1/2" drill bit. When finished this is what it will look like.
Side by Side comparision of the orignal and now modified non foulers
o2 Sensor inserted in the modified non fouler
Second, unmodified non fouler now installed on modified non fouler
Original non fouler->Modified non fouler->o2 sensor
Fully installed
By moving the secondary o2 sensor away from the direct path of exhaust flow and limiting what exhaust gas can get to the o2 sensor the ecu believes that there is a functioning cat still in the system.
Milage at time of install 18900 and ecu reset, will post details in roughly 100-150miles when cel usually comes on
Last edited by EnJaNir; 10-09-2004 at 10:05 PM.
Michael
pretty cool
Update: 100 miles driven still no cel
The next 50 miles or so will tell me for sure if it works or not
Michael
hey dude i reall need to no if this is working and where the hec i can get those parts i live in red deer canada and no won can get them for me let me no u can email me to at leisrage@msn.com
cant you just hardwire it or seomthing?
How Do U Reset The Ecu????
I emailed youOriginally Posted by meat
There are no electronics involved in the mod...I'm confused what you want to hardwire
Either disconnect battery, or pull the ecu fuse under the hood for 10seconds and put it back in
Michael
so what this does is it doesnt let the sensor touch the flow of the exhaust? its still reaing the air, right?? im confused as how this works. all it would do is get the same air but its not moving as much. AM I DUMB OR AM I CLUELESS???
As I stated in my first post
The secondary o2 sensor sees a certain amount of exhaust flow when there is a cat. Once that cat is removed the secondary o2 sensor sees the same amount as the primary cat causing cel.
What this is doing is limiting the amount of exhaust flow the secondar o2 sensor sees by pulling it back away from the main flow of the exhaust and surrounding it with only a roughly 1/4in hole allowing exhaust flow to the sensor itself. Thus tricking the secondary 02 sensor to believe that there is a functioning cat.
Michael
I reached 150 miles today and still no CEL. I would consider this a functional method in removing CEL due to race header/test pipe.
Michael
SAAWWEET, im gonna do it, my cel hs been on for a long time........ hehe
you did a good job enjanir! that's so much cheaper and more effective imo, than a damn casper o2 sim.
Thanks Mike...just my turn to contribute some good info to a great site
Michael
Awesome. You the man.
thank you!!!! you have made my day!
Update guys...I've logged over 600 miles and still no cel
Michael
awesome.
Micheal, you are now my hero- I was looking for a cheap way to do this, and you've shown me how- thanks buddy
Great info man way to help out the community
Sam
Im def going to need to do this when I get my race header thanks man
got mine done this afternoon- over 200 miles, two drag strip runs, and still no CEL! thanks!
Over 500 miles, still gettin' love with this glove (sorry, I haven't slept lately). Anyone want to dyno before and after this mod? That would be super. Thanks, Mark W.
I'm almost at 1000 miles with no cel
A dyno would be worthless because this mod doesn't due anything except get rid of cel due to test pipe/race header
Michael
But doesn't the CEL piss off something in the ECU? Also, wouldn't the decrease in air flow past the o2 sensor change the settings in the ECU?
we have two sensor..the front one at the downpipe is what sends the a/f ratio to the ecu....that sensor has not been changed.
The one that has been changed is the 2nd sensor...the one into the cat. It just sends a signal to the ecu...if the signal is out of range, the ecu thinks the cat is bad...that's it. So no cel=no pissed off ecu.
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