Spark plug non fouler
#1
Honda-Tech Member
Thread Starter
Join Date: Oct 2006
Location: Seattle, Wa, USA
Posts: 357
Likes: 0
Received 0 Likes
on
0 Posts
Spark plug non fouler
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?
#2
Honda-Tech Member
Join Date: Oct 2002
Location: Youngwood, pa, usa
Posts: 1,191
Likes: 0
Received 0 Likes
on
0 Posts
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.
<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.
#5
Honda-Tech Member
Join Date: Oct 2002
Location: Youngwood, pa, usa
Posts: 1,191
Likes: 0
Received 0 Likes
on
0 Posts
Re: (RS93DA)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RS93DA »</TD></TR><TR><TD CLASS="quote">good i dea, how much are those?</TD></TR></TABLE>
i havent bougth them in awhile i think they are around $2.99(give or take a dollar).
i havent bougth them in awhile i think they are around $2.99(give or take a dollar).
#7
Junior Member
Join Date: Nov 2008
Location: Liverpool, New York, United States
Posts: 34
Likes: 0
Received 0 Likes
on
0 Posts
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?
Trending Topics
#11
Honda-Tech Member
Join Date: Nov 2007
Location: Little Mexico, NC, USA
Posts: 314
Likes: 0
Received 0 Likes
on
0 Posts
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
I have no exprience with this trickery, but I think it might work..
I am curious as to your results
#12
Honda-Tech Member
Join Date: May 2002
Location: With my POS D15B2, Whereever whenever, United States
Posts: 3,672
Likes: 0
Received 0 Likes
on
0 Posts
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
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
#14
Honda-Tech Member
Join Date: Nov 2004
Location: Pittsburgh, pa
Posts: 867
Likes: 0
Received 0 Likes
on
0 Posts
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..
Last edited by jayare05; 07-08-2009 at 04:45 PM.
#17
Honda-Tech Member
Join Date: Jun 2009
Location: Vancouver, BC
Posts: 162
Likes: 0
Received 0 Likes
on
0 Posts
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.
#18
Honda-Tech Member
Join Date: Nov 2004
Location: Pittsburgh, pa
Posts: 867
Likes: 0
Received 0 Likes
on
0 Posts
#19
Honda-Tech Member
Join Date: Sep 2006
Location: South Texas
Posts: 2,912
Likes: 0
Received 0 Likes
on
0 Posts
Re: SPARK PLUG NON FOULER
I don't think the o2 sensor will fit in just one of the "non foulers".
#20
Honda-Tech Member
Join Date: Nov 2004
Location: Pittsburgh, pa
Posts: 867
Likes: 0
Received 0 Likes
on
0 Posts
Re: SPARK PLUG NON FOULER
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..
#21
Honda-Tech Member
Join Date: Jun 2009
Location: Vancouver, BC
Posts: 162
Likes: 0
Received 0 Likes
on
0 Posts
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
and tie it up to the chassis somewhere
#22
Honda-Tech Member
Join Date: Dec 2008
Location: Oahu, Hawaii
Posts: 181
Likes: 0
Received 0 Likes
on
0 Posts
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..
i cut that shield off the sensor.
then the fowler fit without drilling it.
slapped it right on nice and snug. The sensor does not exceed the fowler either and it fit under my chasis without it touching.
Hope this helps. Oh yea. The p0420 code came back once and i cleared it but 200 milez later no code.
#25
Honda-Tech Member
Join Date: Nov 2004
Location: Pittsburgh, pa
Posts: 867
Likes: 0
Received 0 Likes
on
0 Posts
Re: SPARK PLUG NON FOULER
i believe this just solved my problem... i had 2 new o2 sensors and a brand new cat.. new header gasket, header, header dounut, changed the plugs, and the next thing i heard could send a false signal if its not reading correctly is the engine temp thermostat. a guy referred me to that saying that even if the gauge is reading correctly on the dash, it can still be screweed up electronically and could send a false signal which would be the p0420. from what i hear, the code usually comes on between 30-70 miles and im at 76 right now. havent seen the check engine light off for more then 60 miles in the past 3 years. to hell with the damn p0420!