How do you deal with Oxygen sensor on duals
#1
07-29-2000, 10:50 PM
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Location: Pickstown, SD, USA
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How do you deal with Oxygen sensor on duals
Guys i need to find out how they deal with the O2 sensor on a dual exhaust setup. I have a Lightning and it only has one muffler
and if i go with a single like say a Flowmaster it doesn't flow enough. So i have to use two flowmasters. I need to know how you get buy with the oxygen sensor...? Maybe
have the muffler shop fabricate some type of
crossover before the mufflers that the o2 sensor can be installed in? Please help.
Thanks-Bryce
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Red 2000 Lightning, SuperChip, Flowmaster, Granatelli Mass Air Meter
and if i go with a single like say a Flowmaster it doesn't flow enough. So i have to use two flowmasters. I need to know how you get buy with the oxygen sensor...? Maybe
have the muffler shop fabricate some type of
crossover before the mufflers that the o2 sensor can be installed in? Please help.
Thanks-Bryce
------------------
Red 2000 Lightning, SuperChip, Flowmaster, Granatelli Mass Air Meter
#2
07-30-2000, 10:04 AM
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Location: Huntsville, AL, USA
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Saw a show on SpeedVison or TNN yesterday where this question was asked and answered.
The O2 Sensor actually reads temp. When the exhaust temp is to cool it richens it up.
It was stated that it was not necessary to have a y-pipe, x-pipe or h-pipe to have the O2 sensor sample both exhaust sources, one would be okay. Closer to the exhaust manifold the better.
Also stated that on many Ford product with aftermarket cat-backs and crossovers, the exhaust temps were to cool causing the O2 sensor to over richen. Suggested relocating the O2 sensors closer to the exhaust manifolds.
The O2 Sensor actually reads temp. When the exhaust temp is to cool it richens it up.
It was stated that it was not necessary to have a y-pipe, x-pipe or h-pipe to have the O2 sensor sample both exhaust sources, one would be okay. Closer to the exhaust manifold the better.
Also stated that on many Ford product with aftermarket cat-backs and crossovers, the exhaust temps were to cool causing the O2 sensor to over richen. Suggested relocating the O2 sensors closer to the exhaust manifolds.
#3
07-30-2000, 11:02 AM
fribab,
Get under you 'L on the muffler side with you head pointing towards the front, look real close.... you do have a dual exhaust. Ford just put a single muffler with dual in and dual out.
Many have added 2 mufflers several have added the 2 chamber Flowmasters. I'll be next.....
Your oxygen sensors are nearer the engine so no problem.
------------------
John Armstrong
2000 Red Lightning
** Chipped by Swanson Performance
** http://www.swansonperformance.com
[This message has been edited by jarmstro (edited 07-30-2000).]
Get under you 'L on the muffler side with you head pointing towards the front, look real close.... you do have a dual exhaust. Ford just put a single muffler with dual in and dual out.
Many have added 2 mufflers several have added the 2 chamber Flowmasters. I'll be next.....
Your oxygen sensors are nearer the engine so no problem.
------------------
John Armstrong
2000 Red Lightning
** Chipped by Swanson Performance
** http://www.swansonperformance.com
[This message has been edited by jarmstro (edited 07-30-2000).]
#4
07-30-2000, 01:04 PM
There are 4 O2 sensor in your car.
There are two close to the collectors.
And there are two after the Cats.
The O2 at the collectors are use as the rich-lean engine monitoring sensors.
The O2 sensors after the cats are cat monitoring sensors.
O2 sensor compare oxygen levels not tempatures. The program you watch was incorrect. I even went and found some ref. documents, here is one: http://www.wps.com/LPG/o2sensor.html
There are two close to the collectors.
And there are two after the Cats.
The O2 at the collectors are use as the rich-lean engine monitoring sensors.
The O2 sensors after the cats are cat monitoring sensors.
O2 sensor compare oxygen levels not tempatures. The program you watch was incorrect. I even went and found some ref. documents, here is one: http://www.wps.com/LPG/o2sensor.html