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  #1 (permalink)  
Old 03 Feb 2004, 11:32 am
amsjsj
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Default O2 sensors?

i have a 96 non-vtech honda civic. I have the engine with 2 O2 sensors. Well
i got new 4-2-1 headers and i only have 1 o2 sensor port. So i am running
check engine light because only 1 o2 sensor is plugged up. How can i get rid
of this problem? Or where should i put the other sensor??


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  #2 (permalink)  
Old 03 Feb 2004, 12:09 pm
Stephen Bigelow
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Default Re: O2 sensors?


"amsjsj" <amsjsj@cox.net> wrote in message
news:2XQTb.20254$fZ6.4673@lakeread06...
> i have a 96 non-vtech honda civic. I have the engine with 2 O2 sensors.

Well
> i got new 4-2-1 headers and i only have 1 o2 sensor port. So i am running
> check engine light because only 1 o2 sensor is plugged up. How can i get

rid
> of this problem? Or where should i put the other sensor??


where were they installed on the original exhaust?


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  #3 (permalink)  
Old 03 Feb 2004, 01:19 pm
Josh
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Default Re: O2 sensors?


"amsjsj" <amsjsj@cox.net> wrote in message
news:2XQTb.20254$fZ6.4673@lakeread06...
> i have a 96 non-vtech honda civic. I have the engine with 2 O2 sensors.

Well
> i got new 4-2-1 headers and i only have 1 o2 sensor port. So i am running
> check engine light because only 1 o2 sensor is plugged up. How can i get

rid
> of this problem? Or where should i put the other sensor??
>


Put the factory manifolds back on.


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  #4 (permalink)  
Old 03 Feb 2004, 04:51 pm
123.bam
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Default Re: O2 sensors?

amsjsj wrote:

> i have a 96 non-vtech honda civic. I have the engine with 2 O2 sensors. Well
> i got new 4-2-1 headers and i only have 1 o2 sensor port. So i am running
> check engine light because only 1 o2 sensor is plugged up. How can i get rid
> of this problem? Or where should i put the other sensor??


with 2 resistors, and a capacitor you can fool the computer into believing the
second sensor is installed

1 resistor (4-7 ohms 50 watts (have to check your service manual)) will
simulate the heater circuit

the capacitor 1uf 25v and second resistor (10-25k ohm 1/2 watt) will be fed off
the primary o2 sensor signal wire and will feed the secondary 02 sensor input


primary 02 ------[10-25k resistor]---.---[capacitor]------gnd
signal wire |

|

|

|

[secondary]
[o2
sensor]
[input]

I hope this displays correctly

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  #5 (permalink)  
Old 03 Feb 2004, 06:59 pm
Jim Yanik
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Default Re: O2 sensors?

"Stephen Bigelow" <sbigelowPOV@rogers.com> wrote in
news:6tRTb.115407$9Ce1.31367@news04.bloor.is.net.c able.rogers.com:

>
> "amsjsj" <amsjsj@cox.net> wrote in message
> news:2XQTb.20254$fZ6.4673@lakeread06...
>> i have a 96 non-vtech honda civic. I have the engine with 2 O2
>> sensors.

> Well
>> i got new 4-2-1 headers and i only have 1 o2 sensor port. So i am
>> running check engine light because only 1 o2 sensor is plugged up.
>> How can i get

> rid
>> of this problem? Or where should i put the other sensor??

>
> where were they installed on the original exhaust?
>
>
>


There's supposed to be one sensor ahead of the catalytic,and one after it.
OBDII standard.

(I believe he deleted the CAT.)

--
Jim Yanik
jyanik-at-kua.net
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  #6 (permalink)  
Old 03 Feb 2004, 07:00 pm
Jim Yanik
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Default Re: O2 sensors?

"123.bam" <"123.bam "@ hotmail.com> wrote in
news:HsJ65D.9rp@news.boeing.com:

> amsjsj wrote:
>
>> i have a 96 non-vtech honda civic. I have the engine with 2 O2
>> sensors. Well i got new 4-2-1 headers and i only have 1 o2 sensor
>> port. So i am running check engine light because only 1 o2 sensor is
>> plugged up. How can i get rid of this problem? Or where should i put
>> the other sensor??

>
> with 2 resistors, and a capacitor you can fool the computer into
> believing the second sensor is installed
>
> 1 resistor (4-7 ohms 50 watts (have to check your service manual))
> will simulate the heater circuit
>




Is it necessary to simulate the heater?

--
Jim Yanik
jyanik-at-kua.net
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  #7 (permalink)  
Old 03 Feb 2004, 07:01 pm
Stephen Bigelow
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Default Re: O2 sensors?


"Jim Yanik" <jyanik@abuse.gov> wrote in message
news:Xns9484CBB59E33Bjyanikkuanet@204.117.192.21.. .
> "Stephen Bigelow" <sbigelowPOV@rogers.com> wrote in
> news:6tRTb.115407$9Ce1.31367@news04.bloor.is.net.c able.rogers.com:
>
> >
> > "amsjsj" <amsjsj@cox.net> wrote in message
> > news:2XQTb.20254$fZ6.4673@lakeread06...
> >> i have a 96 non-vtech honda civic. I have the engine with 2 O2
> >> sensors.

> > Well
> >> i got new 4-2-1 headers and i only have 1 o2 sensor port. So i am
> >> running check engine light because only 1 o2 sensor is plugged up.
> >> How can i get

> > rid
> >> of this problem? Or where should i put the other sensor??

> >
> > where were they installed on the original exhaust?
> >
> >
> >

>
> There's supposed to be one sensor ahead of the catalytic,and one after it.
> OBDII standard.
>
> (I believe he deleted the CAT.)


Yeah, I know, I'm just fishin'.

You know.


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  #8 (permalink)  
Old 04 Feb 2004, 09:30 am
123.bam
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Default Re: O2 sensors?

Jim Yanik wrote:

> "123.bam" <"123.bam "@ hotmail.com> wrote in
> news:HsJ65D.9rp@news.boeing.com:
>
> > amsjsj wrote:
> >
> >> i have a 96 non-vtech honda civic. I have the engine with 2 O2
> >> sensors. Well i got new 4-2-1 headers and i only have 1 o2 sensor
> >> port. So i am running check engine light because only 1 o2 sensor is
> >> plugged up. How can i get rid of this problem? Or where should i put
> >> the other sensor??

> >
> > with 2 resistors, and a capacitor you can fool the computer into
> > believing the second sensor is installed
> >
> > 1 resistor (4-7 ohms 50 watts (have to check your service manual))
> > will simulate the heater circuit
> >

>
> Is it necessary to simulate the heater?
>
> --
> Jim Yanik
> jyanik-at-kua.net


well only if the original has a heated secondary o2 sensor. my 97 accord
v6 needed the heater bypass resistor, otherwise it threw a CEL

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  #9 (permalink)  
Old 04 Feb 2004, 05:51 pm
Daniel
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Posts: n/a
Default Re: O2 sensors?

try installing automotive bulb no 194 (12Volt) in lieu of the resistor.
This will fool the ECM



"123.bam" <"123.bam "@hotmail.com> wrote in message
news:4021100C.5AB52E5B@hotmail.com...
> Jim Yanik wrote:
>
> > "123.bam" <"123.bam "@ hotmail.com> wrote in
> > news:HsJ65D.9rp@news.boeing.com:
> >
> > > amsjsj wrote:
> > >
> > >> i have a 96 non-vtech honda civic. I have the engine with 2 O2
> > >> sensors. Well i got new 4-2-1 headers and i only have 1 o2 sensor
> > >> port. So i am running check engine light because only 1 o2 sensor is
> > >> plugged up. How can i get rid of this problem? Or where should i put
> > >> the other sensor??
> > >
> > > with 2 resistors, and a capacitor you can fool the computer into
> > > believing the second sensor is installed
> > >
> > > 1 resistor (4-7 ohms 50 watts (have to check your service manual))
> > > will simulate the heater circuit
> > >

> >
> > Is it necessary to simulate the heater?
> >
> > --
> > Jim Yanik
> > jyanik-at-kua.net

>
> well only if the original has a heated secondary o2 sensor. my 97 accord
> v6 needed the heater bypass resistor, otherwise it threw a CEL
>



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