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Quickridez_3 · 12-19-2006, 01:22 AM

i have a check engine light coming up for my test pipe p420 would you guys recomment a spark plug non fouler or a o2 simulator? does anyone have pics of either install?

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DontBlink · 12-19-2006, 07:34 AM

These are NOT my photos but im unsure of who the owner is exzactly. But they do give some very good photos and i hope that they dont mind

<FONT SIZE=""4"">

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.

o2 Sensor inserted in the modified non fouler

Second, unmodified non fouler now installed on modified non fouler, then threaded into the downpipe
</FONT>

i have also used an electronic O2 sim from ziptech and it worked really well also. id say try the sprk plug defouler first since its cheap and if that dont your spend the money on the electronic sim.

GO-FIGHT-KILL · 12-19-2006, 10:19 AM

Did the same thing on my R. I'll post a picture of my install.

RC_Benjamin · 12-22-2006, 12:27 AM

good i dea, how much are those?

DontBlink · 12-22-2006, 06:12 AM

Quote:

Originally Posted by RS93DA

good i dea, how much are those?

i havent bougth them in awhile i think they are around $2.99(give or take a dollar).

Casey · 12-22-2006, 01:01 PM

wrap the secondary o2 sensor in aluminum foil, then wrap electrical tape around that to keep water out. tuck it up in the hole or duct tape to chassis.

ELE0MENT · 11-25-2008, 01:26 PM

Now, the spark plug non fouler trick will eliminate a check engine light due to a bad cat converter? My check engine light is on because of a bad cat converter and I am going to attempt the spark plug non fouler trick. Has anyone done this? does it work?

Shawn C · 11-25-2008, 03:19 PM

itll fix a "catalyst system efficiency below threshold" code, but if you have a code for a bad O2 sensor, it may not

ELE0MENT · 11-25-2008, 08:19 PM

ok...but i was reading another site and as far as air/fuel ratio. By doing this will it not tamper or give me wrong ratios?

ELE0MENT · 11-25-2008, 08:20 PM

Also, I posted in the wrong section. I have a 1999 civic si - b16a2 -

woolydotmatrix · 11-26-2008, 09:55 AM

AF ratios are read off the primary (upstream) o2 sensor. The secondary o2 (in the cat) reads the actual conversion in the cat. ie no cat no conversion...sets a code.
I have no exprience with this trickery, but I think it might work..
I am curious as to your results

MugenHonda · 11-26-2008, 10:06 AM

It varies in terms of working from car to car.
For instance, sometimes, like toyotas, it rarely works on because of the high efficiency of california emissions.
but hey for a few bucks, you have nothing to lose

hayfarmer · 02-06-2009, 07:34 PM

I just put sparkplug non foulers on my 99 2.4 cat. 02 sensor and have had no check engine light for over 100 miles. Hope that continues!

jayare05 · 07-08-2009, 05:31 PM

found this thread.. will this trick work just using 1 of the spark plug foulers? im wondering this because my o2 sensor is on top of the cat and im worried about having clearance issues.. i already might have 2 bang the floor up a little bit for the o2 sensor to clear with just using 1 of the spark plug foulers.. or do you apply the spark plug non foulers to the o2 sensor that is in the header? i seen at the top of the thread someone wrote apply to the one in the downpipe.. just wasnt sure if that was on a turbo car or not..

Tweakmeister · 07-08-2009, 07:36 PM

Remember the 02 sensors typically go bad anytime after 75k miles, so the sensor could be bad and giving you that error.

jayare05 · 07-09-2009, 03:33 AM

both of my o2 sensors are new. does anybody know whether it matters what o2 sensor the spark plug non foulers go on?

tipe R · 07-09-2009, 06:17 AM

on my car, I just tied the secondary to the chassis due to the fact that my test pipe doesnt have an o2 bung. It hasnt set a light yet and ive been driving it like this for a few months.

jayare05 · 07-09-2009, 09:38 AM

Quote:

Originally Posted by Tweakmeister

Remember the 02 sensors typically go bad anytime after 75k miles, so the sensor could be bad and giving you that error.

both o2 sensors are new. does anybody know if it matters what o2 sensor you put the spark plug non foulers on?

SoTexDC2 · 07-09-2009, 10:37 AM

Quote:

Originally Posted by jayare05

both o2 sensors are new. does anybody know if it matters what o2 sensor you put the spark plug non foulers on?

You need to put it on the downstream (rear, after cat) O2 sensor. It's purpose is to check the efficiency of the Catalytic Converter.

I don't think the o2 sensor will fit in just one of the "non foulers".

jayare05 · 07-09-2009, 04:27 PM

Quote:

Originally Posted by SoTexDC2

You need to put it on the downstream (rear, after cat) O2 sensor. It's purpose is to check the efficiency of the Catalytic Converter.

I don't think the o2 sensor will fit in just one of the "non foulers".

your probably right about it not fitting in just 1 non fouler.. so what do i do at this point cause theres no way it will clear the floor board. and heres another question.. my secondary o2 sensor is not actually after the cat.. its right before the cat.. could that be another reason im throwin a code? the secondary o2 sensor is like maybe a foot away from the upstream one, then its followed by the cat.. the cat that's on there i believe is a universal one with a 3 inch pipe inlet welded to it for the header to fit..

tipe R · 07-10-2009, 06:22 AM

thats your problem, the secondary o2 is seeing the same thing as the primary so the ecu thinks that your cat is not working. you need to either use the defouler, get an o2 bung welded on after the cat, or remove the secondary o2 from the exaust (leave it plugged in)
and tie it up to the chassis somewhere

12-19-2006, 07:34 AM	#2
DontBlink Member Join Date: Oct 2002 Location: Youngwood, pa, usa Posts: 1,184	Re: SPARK PLUG NON FOULER (Quickridez_3) These are NOT my photos but im unsure of who the owner is exzactly. But they do give some very good photos and i hope that they dont mind <FONT SIZE=""4""> 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. o2 Sensor inserted in the modified non fouler Second, unmodified non fouler now installed on modified non fouler, then threaded into the downpipe </FONT> i have also used an electronic O2 sim from ziptech and it worked really well also. id say try the sprk plug defouler first since its cheap and if that dont your spend the money on the electronic sim. __________________ 97 Type R Turbo 471hp 313tq(on pump gas) 11.61@130mph(bfg drag radials)

12-22-2006, 12:27 AM	#4
RC_Benjamin Member Join Date: Sep 2005 Location: F24, OR, USA Posts: 1,640	Re: (GO-FIGHT-KILL) good i dea, how much are those? __________________ WTB: Bride Zeta III L Gradiation or Mugen S1 Bucket http://www.hondamarketplace.co...81924 VOUCH FOR ME Autosport Garage http://images.honda-tech.com/set1/smile/emthup.gif <U>* Albert Squad #29 </U> <U>R.I.P. Randy Gagan</U>*

12-22-2006, 01:01 PM	#6
Casey Member Join Date: Dec 2001 Location: Kernersville, ricer paradise, NC Posts: 7,624	Re: (DontBlink) wrap the secondary o2 sensor in aluminum foil, then wrap electrical tape around that to keep water out. tuck it up in the hole or duct tape to chassis. __________________ MissShift? www.myspace.com/missShift

11-25-2008, 01:26 PM	#7
ELE0MENT Junior Member Join Date: Nov 2008 Location: Liverpool, New York, United States Posts: 34	Code po420 Now, the spark plug non fouler trick will eliminate a check engine light due to a bad cat converter? My check engine light is on because of a bad cat converter and I am going to attempt the spark plug non fouler trick. Has anyone done this? does it work?

11-25-2008, 03:19 PM	#8
Shawn C In The Garage 2001 Acura Integra Join Date: Nov 2002 Location: Suzuka, Alabama Posts: 4,056	itll fix a "catalyst system efficiency below threshold" code, but if you have a code for a bad O2 sensor, it may not __________________ *dAng!* '01 DC231 #310

12-19-2006, 10:19 AM	#3
GO-FIGHT-KILL Banne*d Join Date: Sep 2005 Location: Wilmington, NC Posts: 6,303	Did the same thing on my R. I'll post a picture of my install.

11-25-2008, 08:19 PM	#9
ELE0MENT Junior Member Join Date: Nov 2008 Location: Liverpool, New York, United States Posts: 34	po420 ok...but i was reading another site and as far as air/fuel ratio. By doing this will it not tamper or give me wrong ratios?

11-25-2008, 08:20 PM	#10
ELE0MENT Junior Member Join Date: Nov 2008 Location: Liverpool, New York, United States Posts: 34	p0420 Also, I posted in the wrong section. I have a 1999 civic si - b16a2 -

11-26-2008, 09:55 AM	#11
woolydotmatrix Junior Member Join Date: Nov 2007 Location: Little Mexico, NC, USA Posts: 311	AF ratios are read off the primary (upstream) o2 sensor. The secondary o2 (in the cat) reads the actual conversion in the cat. ie no cat no conversion...sets a code. I have no exprience with this trickery, but I think it might work.. I am curious as to your results __________________ Proper Prior Planning Prevents Piss Poor Perfomance My build: http://www.Honda tekh/thread?id=3652 94 Hatch J32a2 6spd LSD

11-26-2008, 10:06 AM	#12
MugenHonda Member Join Date: May 2002 Location: With my POS D15B2, Whereever whenever, United States Posts: 3,670	It varies in terms of working from car to car. For instance, sometimes, like toyotas, it rarely works on because of the high efficiency of california emissions. but hey for a few bucks, you have nothing to lose

02-06-2009, 07:34 PM	#13
hayfarmer Junior Member Join Date: Feb 2009 Posts: 1	Re: SPARK PLUG NON FOULER I just put sparkplug non foulers on my 99 2.4 cat. 02 sensor and have had no check engine light for over 100 miles. Hope that continues!

07-08-2009, 05:31 PM	#14
jayare05 Junior Member Join Date: Nov 2004 Location: Pittsburgh, pa Posts: 843	Re: SPARK PLUG NON FOULER found this thread.. will this trick work just using 1 of the spark plug foulers? im wondering this because my o2 sensor is on top of the cat and im worried about having clearance issues.. i already might have 2 bang the floor up a little bit for the o2 sensor to clear with just using 1 of the spark plug foulers.. or do you apply the spark plug non foulers to the o2 sensor that is in the header? i seen at the top of the thread someone wrote apply to the one in the downpipe.. just wasnt sure if that was on a turbo car or not.. __________________ My Build: 1999 Acura Integra GSR http://honda-tech.com/showthread.php?t=2362397 Vouches: cypresscoupe, xfrankx, shoklid, lavyvietboi, armitla08 Last edited by jayare05; 07-08-2009 at 05:45 PM.

07-08-2009, 07:36 PM	#15
Tweakmeister Member Join Date: Oct 2001 Location: Edgewater, MD / La Jolla, CA Posts: 7,528	Re: SPARK PLUG NON FOULER Remember the 02 sensors typically go bad anytime after 75k miles, so the sensor could be bad and giving you that error. __________________ Hogen's [Import Parts] (closed) '99 SSBP GS-R <-- FOR SALE!!11!1 Colossians 2:8

07-09-2009, 03:33 AM	#16
jayare05 Junior Member Join Date: Nov 2004 Location: Pittsburgh, pa Posts: 843	Re: SPARK PLUG NON FOULER both of my o2 sensors are new. does anybody know whether it matters what o2 sensor the spark plug non foulers go on? __________________ My Build: 1999 Acura Integra GSR http://honda-tech.com/showthread.php?t=2362397 Vouches: cypresscoupe, xfrankx, shoklid, lavyvietboi, armitla08

07-09-2009, 06:17 AM	#17
tipe R Junior Member Join Date: Jun 2009 Location: Vancouver, BC Posts: 103	Re: SPARK PLUG NON FOULER on my car, I just tied the secondary to the chassis due to the fact that my test pipe doesnt have an o2 bung. It hasnt set a light yet and ive been driving it like this for a few months.

07-10-2009, 06:22 AM	#21
tipe R Junior Member Join Date: Jun 2009 Location: Vancouver, BC Posts: 103	Re: SPARK PLUG NON FOULER thats your problem, the secondary o2 is seeing the same thing as the primary so the ecu thinks that your cat is not working. you need to either use the defouler, get an o2 bung welded on after the cat, or remove the secondary o2 from the exaust (leave it plugged in) and tie it up to the chassis somewhere

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