HOW TO: Mechanical o2 simiulator cel eliminator

[trinydex]

http://forums.evolutionm.net/showthread.php?t=114931
this install was hard to find so i decided to write this up to make it easier to catch it on the search. key words, Mechanical o2 simiulator cel eliminator spark plug anti or de fouler


this is where i first found this mechanical o2 fix - http://forums.evolutionm.net/showth...37&page=1&pp=15


this installation will remove your SES (service engine soon) light , or CEL (check engine light) that is caused when you install a test pipe (no cat) or high flow cat.


when this light comes on from your install of a new exhaust , be aware that this has no effect on the performance of your car. its just a stupid reminder that the o2 (oxygen) sensor is finding a problem caused when you removed or did something to the stock catalytic converter.


btw - i thought about going with an o2 simulator / eliminator , but the cost / install / problems associated with this fix. did not appeal to me.

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Last edited by burningmoney97 : Nov 27, 2005 at 12:22 PM.

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Jakeg97
Evolved Member
Personal Sales Rating: (27)


Join Date: Sep 2004
Location: Hawaii


Offline Dec 26, 2004, 10:23 AM #2

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notes before starting
- you might have space for only 1 spark plug anti-fouler, sometimes using 1 will work / sometimes not
- having an electric drill helps out tremendously , those battery operated ones dont have that much power; they will still work but will be a pain
- this may still not solve your problem of the light; a small amount of people that try this 'quick fix' still cant get the light to go off




STEP 1
-purchase 2 spark plug anti foulers at your local auto parts store
-18 mm size
-made by HELP brand / part number 42002
-HELP has also another part number 42009 and are shorter in length than the 42002, i have heard they worked , but i am not 100 percent

http://www.socalevo.net/gallery/albums/userpics/10991/DSC02852.sized.jpg

STEP 2
-disconnect the negative terminal on your battery. this will reset your ecu
-take one of the anti foulers and drill out its center using a 1/2 bit ,
-this will increase its hole size and allow your stock o2 sensor to fit

http://www.socalevo.net/gallery/albums/userpics/10991/DSC02871.sized.jpg

STEP 3
-screw the drilled spark plug anti-fouler on top of the original
-be sure to use some kind of anti-seize on the treads. in case you need to remove your fix with ease

http://www.socalevo.net/gallery/albums/userpics/10991/DSC02874.sized.jpg

http://www.socalevo.net/gallery/albums/userpics/10991/DSC02875.sized.jpg

STEP 4
-unscrew your stock o2 sensor and place your cel / ses fix in
-use anti seize on the threads
-clean your cell (by wiping it off with a paper towel)

http://www.socalevo.net/gallery/albums/userpics/10991/DSC02877.sized.jpg

http://www.socalevo.net/gallery/albums/userpics/10991/DSC02863.sized.jpg

http://www.socalevo.net/gallery/albums/userpics/10991/DSC02866.sized.jpg

STEP 5
-reinstall your o2 sensor
-use anti seize on the threads

http://www.socalevo.net/gallery/albums/userpics/10991/DSC02881.sized.jpg

STEP 6
-reconnect your battery (your ecu is reset)
-you have just solved the problem of the 'damn light keeps coming on'

ps. its cost me 8 dollars for the pack of 2 spark plug anti-foulers

[trinydex]

Available at your local automotive store. Spark Plug Non Fouler PN 42009 ($4.99)
http://www.socalevo.net/gallery/albums/userpics/10991/1%7E0.jpg

http://www.socalevo.net/gallery/albums/userpics/10991/2%7E0.jpg

http://www.socalevo.net/gallery/albums/userpics/10991/3%7E0.jpg

http://www.socalevo.net/gallery/albums/userpics/10991/4%7E0.jpg

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.
http://www.socalevo.net/gallery/albums/userpics/10991/5%7E0.jpg

http://www.socalevo.net/gallery/albums/userpics/10991/6%7E0.jpg

Side by Side comparision of the orignal and now modified non foulers
http://www.socalevo.net/gallery/albums/userpics/10991/7%7E0.jpg

http://www.socalevo.net/gallery/albums/userpics/10991/8%7E0.jpg

o2 Sensor inserted in the modified non fouler
http://www.socalevo.net/gallery/albums/userpics/10991/9%7E0.jpg

Second, unmodified non fouler now installed on modified non fouler
http://www.socalevo.net/gallery/albums/userpics/10991/10%7E0.jpg

Original non fouler->Modified non fouler->o2 sensor
http://www.socalevo.net/gallery/albums/userpics/10991/11%7E0.jpg

Fully installed
http://www.socalevo.net/gallery/albums/userpics/10991/12%7E0.jpg

The idea behind it is when you remove the cat the 2nd o2 sensor is going to have too much crap reaching the sensor that isnt filtered out, which will make it think the cat has gone bad. What this does is it moves the o2 sensor further away so a limited amount of exhaust gets to the o2 sensor, it is a VERY little ammount that actually gets to the sensor but as long as it is considerably less than the primary o2 sensor then it wont cause a CEL.

from (http://www.k-series.com/forum/showthread.php?t=8833) pics rehosted by me incase the thread/pics disappear.

saw a few threads asking how to do it so i found it done w/ pics and decided to pass along the info :thumbup: