Do it yourself o2 simulator

knightrider · 08-09-2004, 12:17 PM

After a search I found that http://www.rodney.chalker.com/o2_simulator.htm
had a way to make your own o2 simulator. However, that site is down and I was wondering if anyone has those directions or know how to do it using a resistor.

Dan Plante · 08-09-2004, 06:20 PM

I will put it this way if you need new 02 sensors than buy them. Don't try to override them unless you have LS1 Edit and can eliminate them from the computer. If your computer has to read the 02 sensor don't try to make your own. You can't rig it up with a resistor.

knightrider · 08-09-2004, 11:15 PM

Well i don't need new o2 sensors. I need an o2 simulator because I have a straight pipe in place of my cat. I've read before on the website I linked on how to make one but I can't remember how to and the site is down.

Dan Plante · 08-10-2004, 09:55 AM

Ok I thought you said O2 sensor. The simulator is like $15 from Casper Electronics. Just buy one.

MINTSICK · 08-10-2004, 12:56 PM

Quote: Originally Posted by Dan P.

Ok I thought you said O2 sensor. The simulator is like $15 from Casper Electronics. Just buy one.

$50 but still worth it, there are issues with the DIY simulators.

FCKNLOW · 07-28-2008, 05:19 PM

link to this site??

02_Black_XBlazer · 07-28-2008, 06:11 PM

Quote: Originally Posted by FCKNLOW

link to this site??

If you're asking about the Casper's, they've long since stopped selling 02 simulators after getting leaned on by the EPA. That other site is long gone too.

btw, I know someone will yell about gravedigging an old thread, but kudos for using the search button.

ka_jd7and1 · 08-04-2008, 02:11 AM

Dunno for sure if this will work for an S10, but:

http://www.mkiv.com/techarticles/oxy...sor_simulator/

Assembly diagram and parts list is included.

1tuffs10 · 11-06-2008, 06:57 PM

http://www.afterthoughtsauto.com/o2sim.html

82SROD · 03-25-2009, 01:38 PM

I can get the splice in type from PYPES for a mustang, the operate basically the same. Anybody know which wire I gotta hack into?

Yes, I know this is an old thread!

slows-10 · 04-01-2009, 03:03 AM

It works, and there is no need to cut any wires or anything...very easy as well.
I personally have driven about 300 miles since, no CEL. So anybody who wants to run a test pipe...here is the mod you should do to stop the CEL...don't bother with the electronic ones with only some of them working...and not working all the time. These pics are from it being done STi, but I did it on my S, works just the same.

or

Those are the Spark plug, Anti-Foulers you'll need to do this..just pick them up at any auto parts store

This post has been edited by SLO-S2000 on Aug 21 2004, 11:11 AM

slows-10 · 04-01-2009, 03:04 AM

i did this on my 03 civic si and i never got a check engine light. also did it on my bros acura.

FouR_ThreE_Xtreme · 04-02-2009, 12:20 AM

I'm gonna do this sometime after spring break when i get some spare time. The CEL is really gettin on my nerves being on constantly..

S-10_man66 · 04-02-2009, 12:58 AM

Did the non fouler to my truck about 2 weeks ago and it works perfectly

beandip · 04-04-2009, 10:58 AM

Did this to my truck 3 weeks ago also and it works perfect. My high flow cat was throwing the P0420 code every now and then, sometimes it doesn't throw that code for months then out of nowhere it pops up, other times it pops up every few drive cycles. I still have the stock cat and i was about to put that back on there because i got tired of deleting the damn code (kept the obdii reader in my truck lol).

Since i threw the O2 foulers on, bam, no SES light.

Justinangove · 04-08-2009, 01:28 AM

so this acually works? but u cant gut ur cat and do this right?

lowfarmer · 04-09-2009, 11:47 AM

Ive had that set up on my acura for over a year. It works great, its an easy 6 dollar fix to the check engine light.

Gimp · 04-11-2009, 04:46 AM

sry to chime in here with question but i too have a test pipe handy and would love to use it. so is all thats being done here is putting 2 non fowlers together and then putting the o2 into them, creating a larger gap between the cap/test pipe and o2?

Gimp · 04-11-2009, 11:12 AM

answered my own question and doing it today..

beandip · 04-13-2009, 04:46 PM

from what i read online you can run a test pipe and it still wont throw the code. as long as the O2 sensor sees the heat then it wont throw the code.

Just to be 100% in a couple of days post it up if your light has or hasn't come on yet.

FouR_ThreE_Xtreme · 04-13-2009, 07:16 PM

Ok i've got the spark plug non foulers, and i'm looking at them and went to look for a 1/2" drill bit today... is there another form of a 1/2" drill bit? the one i found was freakin huge... like about the same size as the circumfrence of the non fouler bottom...

beandip · 04-14-2009, 11:21 AM

Quote: Originally Posted by FouR_ThreE_Xtreme

Ok i've got the spark plug non foulers, and i'm looking at them and went to look for a 1/2" drill bit today... is there another form of a 1/2" drill bit? the one i found was freakin huge... like about the same size as the circumfrence of the non fouler bottom...

yeah... i got mine drilled out at a friends shop, he put the 1/2 bit on a lathe and it was close to the threads. you can almost see the indentation of the threads after you drill it out, barely any metal left...

FouR_ThreE_Xtreme · 04-14-2009, 04:31 PM

Alright as long as i make sure it's right... my stepdad has a uni-bit we can use, i'll probably do it tomorrow while we already have the truck up to do my calipers.

chadlogan112 · 04-15-2009, 11:32 PM

I attempted to do this tonight, I drilled out the fouler using a 1/2'' drill bit, and my o2 sensor doesn't fit in it. Anyone have an idea?

FouR_ThreE_Xtreme · 04-23-2009, 11:44 PM

idk but how long does it usually take to bore out the fouler? Maybe i'm doing something wrong? I got the 1/2 drill bit and started to bore it out but after like 10 minutes of drilling in it on and off i had to quit(mostly to not be sweaty when i picked up my girlfriend), but i mean the hole in the middle didn't get any bigger but the actual surface of the fouler where i was drilling did get much thinner so maybe just go at it a little bit more with it? I knew i shoulda bought that damn unibit...

chadlogan112 · 04-23-2009, 11:55 PM

To answer my own question, the stock 02 sensors are larger than .5'', I had to buy aftermarket, and it works flawlessly.

As for drill time, about 5 min. I worked my way up to a 1/2'', make sure the bits are for metal too btw, and not wood. Having a nice vice is key for getting it done quick.

2002dime · 04-24-2009, 12:33 AM

I have a straight pipe. I have the non-fowlers on my as well with no light. My budy didn't believe it worked so he did it to his lexus is300....worked as well.

FouR_ThreE_Xtreme · 04-29-2009, 02:46 PM

man i don't feel like spending any more money buying another bit trying to bore this thing out. I tried with the 1/2" bit and the surface got deeper but the hole didnt get any bigger and i don't think it's making any more progress no matter how much i go at it. So i guess the CEL is just gonna stay off, at least until i can get to a better set of tools

beandip · 04-30-2009, 12:31 AM

Take it to a machine shop, they can easily bore it out more.

with mine i had it bored out to the stock o2 sensor size, the aftermarket i had in there went in with alot of room to spare.

FouR_ThreE_Xtreme · 04-30-2009, 11:36 PM

I think all i need is a unibit but it's 17 bucks at lowes and i really dont wanna buy that shit. My new rollpan should be here soon and when i take it to my dads shop to be painted and put on and have my door panel and window fixed, i'll use his unibit up at his shop to finish the o2 simulator. I asked him to bring it home a few times but the guy never remembers haha

minitrucker83 · 05-01-2009, 12:56 AM

Ive been using the non foulers for quite a while now on my 96 2.2l. Havent had any issues.

truefire04 · 05-10-2009, 11:53 AM

wow, i had done this about 2 years ago, posted on here, did get that much responce.....and today i see someone else post about it and get tons of responces......and yes it does work, my check engine light was on do to a hollowed out cat, did the non-fouler trick whent for a drive the check engine light whent off by itself...im not runnin it anymore do to new motor, and no the motor was still running when i pulled it out, just wanted a little more power. and im also obd1 now.

08-09-2004, 12:17 PM	#1
knightrider Registered User Age: 25 Join Date: Aug 2004 Posts: 2 Location: User is: OffLine	Do it yourself o2 simulator After a search I found that http://www.rodney.chalker.com/o2_simulator.htm had a way to make your own o2 simulator. However, that site is down and I was wondering if anyone has those directions or know how to do it using a resistor.
	[Reply w/Quote]

08-09-2004, 06:20 PM	#2
Dan Plante Registered User Age: 33 Join Date: Jul 2001 Posts: 3,850 Location: Franklin, MA User is: OffLine	Re: Do it yourself o2 simulator I will put it this way if you need new 02 sensors than buy them. Don't try to override them unless you have LS1 Edit and can eliminate them from the computer. If your computer has to read the 02 sensor don't try to make your own. You can't rig it up with a resistor.
	[Reply w/Quote]

08-09-2004, 11:15 PM	#3
knightrider Registered User Age: 25 Join Date: Aug 2004 Posts: 2 Location: User is: OffLine	Re: Do it yourself o2 simulator Well i don't need new o2 sensors. I need an o2 simulator because I have a straight pipe in place of my cat. I've read before on the website I linked on how to make one but I can't remember how to and the site is down.
	[Reply w/Quote]

08-10-2004, 09:55 AM	#4
Dan Plante Registered User Age: 33 Join Date: Jul 2001 Posts: 3,850 Location: Franklin, MA User is: OffLine	Re: Do it yourself o2 simulator Ok I thought you said O2 sensor. The simulator is like $15 from Casper Electronics. Just buy one.
	[Reply w/Quote]

08-10-2004, 12:56 PM	#5
MINTSICK Akerfeldt Age: 27 Join Date: Oct 2003 Posts: 11,472 Location: Danvers, Ma User is: OffLine	Re: Do it yourself o2 simulator Quote: Originally Posted by Dan P. Ok I thought you said O2 sensor. The simulator is like $15 from Casper Electronics. Just buy one. $50 but still worth it, there are issues with the DIY simulators.
	[Reply w/Quote]

07-28-2008, 05:19 PM	#6
FCKNLOW hates 4cyl s10s Age: 21 Join Date: Mar 2005 Posts: 9,788 Location: Mechanicsburg, Pa User is: OffLine	Re: Do it yourself o2 simulator link to this site??
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07-28-2008, 06:11 PM	#7
02_Black_XBlazer Starting from scratch... Join Date: Nov 2005 Posts: 3,331 Location: Over By There, IL User is: OffLine	Re: Do it yourself o2 simulator Quote: Originally Posted by FCKNLOW link to this site?? If you're asking about the Casper's, they've long since stopped selling 02 simulators after getting leaned on by the EPA. That other site is long gone too. btw, I know someone will yell about gravedigging an old thread, but kudos for using the search button.
	[Reply w/Quote]

08-04-2008, 02:11 AM	#8
ka_jd7and1 is a fungineer Age: 24 Join Date: Jun 2005 Posts: 4,142 Location: Bakersfield, CA User is: OffLine	Re: Do it yourself o2 simulator Dunno for sure if this will work for an S10, but: http://www.mkiv.com/techarticles/oxy...sor_simulator/ Assembly diagram and parts list is included.
	[Reply w/Quote]

11-06-2008, 06:57 PM	#9
1tuffs10 joining 2.2l boosted club Age: 25 Join Date: May 2008 Posts: 720 Location: User is: OffLine	Re: Do it yourself o2 simulator http://www.afterthoughtsauto.com/o2sim.html
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03-25-2009, 01:38 PM	#10
82SROD Registered User Join Date: Mar 2009 Posts: 7 Location: User is: OffLine	Re: Do it yourself o2 simulator I can get the splice in type from PYPES for a mustang, the operate basically the same. Anybody know which wire I gotta hack into? Yes, I know this is an old thread!
	[Reply w/Quote]

04-01-2009, 03:03 AM	#11
slows-10 Registered User Age: 24 Join Date: Mar 2009 Posts: 13 Location: User is: OffLine	Re: Do it yourself o2 simulator It works, and there is no need to cut any wires or anything...very easy as well. I personally have driven about 300 miles since, no CEL. So anybody who wants to run a test pipe...here is the mod you should do to stop the CEL...don't bother with the electronic ones with only some of them working...and not working all the time. These pics are from it being done STi, but I did it on my S, works just the same. or Those are the Spark plug, Anti-Foulers you'll need to do this..just pick them up at any auto parts store This post has been edited by SLO-S2000 on Aug 21 2004, 11:11 AM
	[Reply w/Quote]

04-01-2009, 03:04 AM	#12
slows-10 Registered User Age: 24 Join Date: Mar 2009 Posts: 13 Location: User is: OffLine	Re: Do it yourself o2 simulator i did this on my 03 civic si and i never got a check engine light. also did it on my bros acura.
	[Reply w/Quote]

04-02-2009, 12:20 AM	#13
FouR_ThreE_Xtreme bowties in my bloodstream Age: 19 Join Date: Dec 2008 Posts: 867 Location: Greenville, SC User is: OffLine	Re: Do it yourself o2 simulator I'm gonna do this sometime after spring break when i get some spare time. The CEL is really gettin on my nerves being on constantly..
	[Reply w/Quote]

04-02-2009, 12:58 AM	#14
S-10_man66 Nevada: Hookers & Poker Age: 19 Join Date: Jun 2008 Posts: 839 Location: Bellevue,NE User is: OffLine	Re: Do it yourself o2 simulator Did the non fouler to my truck about 2 weeks ago and it works perfectly
	[Reply w/Quote]

04-04-2009, 10:58 AM	#15
beandip I'm Back!! Age: 21 Join Date: Sep 2006 Posts: 6,991 Location: Somewhere, OK User is: OffLine	Re: Do it yourself o2 simulator Did this to my truck 3 weeks ago also and it works perfect. My high flow cat was throwing the P0420 code every now and then, sometimes it doesn't throw that code for months then out of nowhere it pops up, other times it pops up every few drive cycles. I still have the stock cat and i was about to put that back on there because i got tired of deleting the damn code (kept the obdii reader in my truck lol). Since i threw the O2 foulers on, bam, no SES light.
	[Reply w/Quote]

04-08-2009, 01:28 AM	#16
Justinangove Registered User Age: 22 Join Date: Mar 2008 Posts: 92 Location: Thunder Bay, ON User is: OffLine	Re: Do it yourself o2 simulator so this acually works? but u cant gut ur cat and do this right?
	[Reply w/Quote]

04-09-2009, 11:47 AM	#17
lowfarmer Registered User Age: 23 Join Date: Jan 2009 Posts: 145 Location: MD User is: OffLine	Re: Do it yourself o2 simulator Ive had that set up on my acura for over a year. It works great, its an easy 6 dollar fix to the check engine light.
	[Reply w/Quote]

04-11-2009, 04:46 AM	#18
Gimp crippled bastard Age: 25 Join Date: May 2008 Posts: 1,587 Location: CT User is: OffLine	Re: Do it yourself o2 simulator sry to chime in here with question but i too have a test pipe handy and would love to use it. so is all thats being done here is putting 2 non fowlers together and then putting the o2 into them, creating a larger gap between the cap/test pipe and o2?
	[Reply w/Quote]

04-11-2009, 11:12 AM	#19
Gimp crippled bastard Age: 25 Join Date: May 2008 Posts: 1,587 Location: CT User is: OffLine	Re: Do it yourself o2 simulator answered my own question and doing it today..
	[Reply w/Quote]

04-13-2009, 04:46 PM	#20
beandip I'm Back!! Age: 21 Join Date: Sep 2006 Posts: 6,991 Location: Somewhere, OK User is: OffLine	Re: Do it yourself o2 simulator from what i read online you can run a test pipe and it still wont throw the code. as long as the O2 sensor sees the heat then it wont throw the code. Just to be 100% in a couple of days post it up if your light has or hasn't come on yet.
	[Reply w/Quote]

04-13-2009, 07:16 PM	#21
FouR_ThreE_Xtreme bowties in my bloodstream Age: 19 Join Date: Dec 2008 Posts: 867 Location: Greenville, SC User is: OffLine	Re: Do it yourself o2 simulator Ok i've got the spark plug non foulers, and i'm looking at them and went to look for a 1/2" drill bit today... is there another form of a 1/2" drill bit? the one i found was freakin huge... like about the same size as the circumfrence of the non fouler bottom...
	[Reply w/Quote]

04-14-2009, 11:21 AM	#22
beandip I'm Back!! Age: 21 Join Date: Sep 2006 Posts: 6,991 Location: Somewhere, OK User is: OffLine	Re: Do it yourself o2 simulator Quote: Originally Posted by FouR_ThreE_Xtreme Ok i've got the spark plug non foulers, and i'm looking at them and went to look for a 1/2" drill bit today... is there another form of a 1/2" drill bit? the one i found was freakin huge... like about the same size as the circumfrence of the non fouler bottom... yeah... i got mine drilled out at a friends shop, he put the 1/2 bit on a lathe and it was close to the threads. you can almost see the indentation of the threads after you drill it out, barely any metal left...
	[Reply w/Quote]

04-14-2009, 04:31 PM	#23
FouR_ThreE_Xtreme bowties in my bloodstream Age: 19 Join Date: Dec 2008 Posts: 867 Location: Greenville, SC User is: OffLine	Re: Do it yourself o2 simulator Alright as long as i make sure it's right... my stepdad has a uni-bit we can use, i'll probably do it tomorrow while we already have the truck up to do my calipers.
	[Reply w/Quote]

04-15-2009, 11:32 PM	#24
chadlogan112 Registered User Join Date: Mar 2003 Posts: 368 Location: Daytona Beach User is: OffLine	Re: Do it yourself o2 simulator I attempted to do this tonight, I drilled out the fouler using a 1/2'' drill bit, and my o2 sensor doesn't fit in it. Anyone have an idea?
	[Reply w/Quote]

04-23-2009, 11:44 PM	#25
FouR_ThreE_Xtreme bowties in my bloodstream Age: 19 Join Date: Dec 2008 Posts: 867 Location: Greenville, SC User is: OffLine	Re: Do it yourself o2 simulator idk but how long does it usually take to bore out the fouler? Maybe i'm doing something wrong? I got the 1/2 drill bit and started to bore it out but after like 10 minutes of drilling in it on and off i had to quit(mostly to not be sweaty when i picked up my girlfriend), but i mean the hole in the middle didn't get any bigger but the actual surface of the fouler where i was drilling did get much thinner so maybe just go at it a little bit more with it? I knew i shoulda bought that damn unibit...
	[Reply w/Quote]

04-23-2009, 11:55 PM	#26
chadlogan112 Registered User Join Date: Mar 2003 Posts: 368 Location: Daytona Beach User is: OffLine	Re: Do it yourself o2 simulator To answer my own question, the stock 02 sensors are larger than .5'', I had to buy aftermarket, and it works flawlessly. As for drill time, about 5 min. I worked my way up to a 1/2'', make sure the bits are for metal too btw, and not wood. Having a nice vice is key for getting it done quick.
	[Reply w/Quote]

04-24-2009, 12:33 AM	#27
2002dime Registered User Age: 28 Join Date: Jan 2008 Posts: 315 Location: Joplin, MO User is: OffLine	Re: Do it yourself o2 simulator I have a straight pipe. I have the non-fowlers on my as well with no light. My budy didn't believe it worked so he did it to his lexus is300....worked as well.
	[Reply w/Quote]

04-29-2009, 02:46 PM	#28
FouR_ThreE_Xtreme bowties in my bloodstream Age: 19 Join Date: Dec 2008 Posts: 867 Location: Greenville, SC User is: OffLine	Re: Do it yourself o2 simulator man i don't feel like spending any more money buying another bit trying to bore this thing out. I tried with the 1/2" bit and the surface got deeper but the hole didnt get any bigger and i don't think it's making any more progress no matter how much i go at it. So i guess the CEL is just gonna stay off, at least until i can get to a better set of tools
	[Reply w/Quote]

04-30-2009, 12:31 AM	#29
beandip I'm Back!! Age: 21 Join Date: Sep 2006 Posts: 6,991 Location: Somewhere, OK User is: OffLine	Re: Do it yourself o2 simulator Take it to a machine shop, they can easily bore it out more. with mine i had it bored out to the stock o2 sensor size, the aftermarket i had in there went in with alot of room to spare.
	[Reply w/Quote]

04-30-2009, 11:36 PM	#30
FouR_ThreE_Xtreme bowties in my bloodstream Age: 19 Join Date: Dec 2008 Posts: 867 Location: Greenville, SC User is: OffLine	Re: Do it yourself o2 simulator I think all i need is a unibit but it's 17 bucks at lowes and i really dont wanna buy that shit. My new rollpan should be here soon and when i take it to my dads shop to be painted and put on and have my door panel and window fixed, i'll use his unibit up at his shop to finish the o2 simulator. I asked him to bring it home a few times but the guy never remembers haha
	[Reply w/Quote]

05-01-2009, 12:56 AM	#31
minitrucker83 S-series abuser Age: 25 Join Date: Apr 2003 Posts: 606 Location: Fenton, MO User is: OffLine	Re: Do it yourself o2 simulator Ive been using the non foulers for quite a while now on my 96 2.2l. Havent had any issues.
	[Reply w/Quote]

05-10-2009, 11:53 AM	#32
truefire04 Cutting Edge Join Date: Aug 2006 Posts: 373 Location: Riverview Florida User is: OffLine	Re: Do it yourself o2 simulator wow, i had done this about 2 years ago, posted on here, did get that much responce.....and today i see someone else post about it and get tons of responces......and yes it does work, my check engine light was on do to a hollowed out cat, did the non-fouler trick whent for a drive the check engine light whent off by itself...im not runnin it anymore do to new motor, and no the motor was still running when i pulled it out, just wanted a little more power. and im also obd1 now. Last edited by truefire04 : 05-10-2009 at 11:57 AM.
	[Reply w/Quote]