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Re: best place to install o2 sensor
[Re: a493demon]
#1056729
08/19/11 12:57 PM
08/19/11 12:57 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Put the bung in BEFORE/up stream of the evac or you will get a bad reading on the O2 and it should be mounted so its above the centerline of the tube so it doesnt collect moisture 
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Re: best place to install o2 sensor
[Re: fishy340]
#1056731
08/19/11 03:33 PM
08/19/11 03:33 PM
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Joined: Feb 2007
Posts: 6,295
U.S.
moparniac
master
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master
Joined: Feb 2007
Posts: 6,295
U.S.
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I run an evac system and full exhaust! my sensor is right in the x pipe! no issues at all and the plugs read what the wideband is saying. Id imagine with open headers and the sensor right behind the evac nipple could give false readings...
Mopar Performance
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Re: best place to install o2 sensor
[Re: moparniac]
#1056732
08/19/11 03:40 PM
08/19/11 03:40 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
I run an evac system and full exhaust! my sensor is right in the x pipe! no issues at all and the plugs read what the wideband is saying. Id imagine with open headers and the sensor right behind the evac nipple could give false readings...
I will guarantee that the readings your getting are
NOT TRUE readings... its seeing vapors from the engine
also ... is it going to be way off  ...
I did the O2 stuff for Chrysler for YEARS
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Re: best place to install o2 sensor
[Re: MR_P_BODY]
#1056733
08/19/11 04:00 PM
08/19/11 04:00 PM
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Joined: Feb 2007
Posts: 6,295
U.S.
moparniac
master
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master
Joined: Feb 2007
Posts: 6,295
U.S.
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Im just saying what mine does not arguing with ya! I drive on the street alot testing and pull plugs all the time! had my SV1 apart SEVERAL times even changing orifice sizes in the main body! my plugs were dead rich when my wideband said it! I have a good clean street tune now and the plugs look great! when im running rich my sensor looks like a rich plug! when im running good the sensor is clean like a plug would be! I set my car up rich before going to the track and drove to a car show and played around some on the street! whenever my SV1 is too rich it stumbles for a hair going from part throttle to getting on it... and yes when I checked them plugs they were way rich (just sayin) here is one vid from testing on the street! with the way the thing bounces around some not sure how you would say its off one way or the other! I think its a great tool and lets me know what going on"ish" I guess  http://www.youtube.com/watch?v=hbyM0Rw0RWw
Mopar Performance
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Re: best place to install o2 sensor
[Re: moparniac]
#1056734
08/19/11 04:04 PM
08/19/11 04:04 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Im just saying what mine does not arguing with ya! I drive on the street alot testing and pull plugs all the time! had my SV1 apart SEVERAL times even changing orifice sizes in the main body! my plugs were dead rich when my wideband said it! I have a good clean street tune now and the plugs look great! when im running rich my sensor looks like a rich plug! when im running good the sensor is clean like a plug would be! I set my car up rich before going to the track and drove to a car show and played around some on the street! whenever my SV1 is too rich it stumbles for a hair going from part throttle to getting on it... and yes when I checked them plugs they were way rich (just sayin)
here is one vid from testing on the street! with the way the thing bounces around some not sure how you would say its off one way or the other! I think its a great tool and lets me know what going on"ish" I guess
http://www.youtube.com/watch?v=hbyM0Rw0RWw
Do what ever you want, I'm just telling you a fact
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Re: best place to install o2 sensor
[Re: MR_P_BODY]
#1056738
08/20/11 10:42 AM
08/20/11 10:42 AM
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Joined: Jan 2003
Posts: 16,923
NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,923
NC
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Quote:
Put the bung in BEFORE/up stream of the evac
I agree.
The evac may only be a slight error under some conditions, but I don't know how much. And light throttle may be worse than full throttle. Get the best measurement you can.
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Re: best place to install o2 sensor
[Re: 440Jim]
#1056739
08/20/11 05:44 PM
08/20/11 05:44 PM
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Joined: May 2004
Posts: 952
Stockholm, Sweden
MrSixpack
super stock
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super stock
Joined: May 2004
Posts: 952
Stockholm, Sweden
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Mr.P I'm also interested on the right way to mount the sensor. Do you have a picture or something to referate to the mounting point. My car is a dart with 340, doug headers and 3 " exhaust system, should it be down on top of the collector? Thanks 
1970 Super Stock Challenger ex. Paul Rossi
1968 Dodge Dart GT 340
1968 Dodge Charger /6 3 speed manual
1966 Chrysler 300 Loaded
1968 Dodge Charger R/T 440
1968 Mini Cooper
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Re: best place to install o2 sensor
[Re: MrSixpack]
#1056740
08/20/11 06:15 PM
08/20/11 06:15 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Mr.P
I'm also interested on the right way to mount the sensor.
Do you have a picture or something to referate to the mounting point.
My car is a dart with 340, doug headers and 3 " exhaust system, should it be down on top of the collector?
Thanks
No I dont have any pics but mount it like I said...
forward of any e-vac and above the horizontal so
it wont collect moistue
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thats where mine is and like all my boys cars also 
