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12-16-2003, 04:25 AM
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#1 | | Senior Member
Join Date: Sep 2003 Location: St. Point, WI
Posts: 127
|  Oxygen Sensor.
I think my O2 sensor is going. My gas mileage is droping and the cars been acting up. I have slowly replace the common parts; fuel pump, gaskets, etc. And I think that its the O2 sensor. My big questions are, where can I get one for cheap (how much?) and how hard is it to install into my 96 SW2?
While I am at it, I am thinking of droping in an Air-to-Fuel gauge and/of fuel computer, how hard are those to install? I've never looked into it before. I dont think it would be too hard, but just wondering how its done.
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12-16-2003, 06:13 AM
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#2 | | Senior Member
Join Date: Jul 2002 Location: Calgary, Alberta, Canada
Posts: 2,439
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o2 sensor will probably be fairly cheap at your local auto parts store, as long as you order a universal one with the correct thread. They're dirt simple to install. The universal one would require a single wire splice.
A/F gauge is pretty easy to install. One wire to the o2 sensor, a couple for power, and you're done.
Jim
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12-16-2003, 09:11 AM
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#3 | | Senior Member
Join Date: Dec 2002 Location: Dayton, Ohio
Posts: 1,443
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If you are replacing the o2 sensor and installing the gauge, you may wanna pick up a heated or wideband o2 sensor. The stock sensor is appearently not very accurate, especially for use with a gauge. Io you do a search, you'll find part numbers, and I think there was a heated one in the for sale section not too long ago. | |
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12-16-2003, 12:58 PM
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#4 | | Senior Member
Join Date: Oct 2002
Posts: 682
| Re: Oxygen Sensor.
Do NOT replace the o2 sensor because of your gas milage.
O2 have very little to do with the gas milage. You can change the thermostat and ECTS for the gasmilage purpose.
Regarding to your gasmilage, for one thing, winter is here and cold weather kills gasmilage. What exact gasmilage are you geting?
How is your car acting up?
Once again, do NOT change your o2 sesnor for gasmilage purpose.
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a dirty loving sl2 | |
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12-16-2003, 05:31 PM
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#5 | | Senior Member
Join Date: Sep 2003 Location: St. Point, WI
Posts: 127
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When I got the car around August, I was getting about 35 mpg. Then I started working on the engine, like replacing spark plugs, which were shot, and fuel filter, etc. Now I am somewhere around 25 mpg. Thats quite a hit when I drive about 100 miles a day. From what I have talked to others about, I think its the sensor that is gone.
I am sort of a newb to all the engine work. I can wire a sound system blindfolded, but am new to most of the motor and parts. So if you could tell me what the thermostat and ECTS would do for me, that would be great. To the best of my understanding, the thermostat just regulates how hot the engine gets before it starts to cool itself down. I am probably wrong, or just not fully correct. Just let me know. If you tell me what I should do, I will do it.
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When the second engine goes, its a very sad day. | |
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12-16-2003, 06:17 PM
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#6 | | Junior Member
Join Date: Dec 2003 Location: Harrisburg, PA
Posts: 26
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Well I was getting about that same gas mileage in the warm weather and I'm down to 25-27 area now with winter... it might just be the winter
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Creation imperfect
Do you defy this?
Could you and your swollen ego fit into my master plan for failure? | |
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12-16-2003, 06:53 PM
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#7 | | Senior Member
Join Date: Jul 2002 Location: Calgary, Alberta, Canada
Posts: 2,439
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The ECTS (engine coolant temperature sensor) sends a signal to the PCM to let it know what's going on temp. wise with the engine. If it's getting a cold signal, it may fatten up the fuel mixture, or run at a cold idle setting. There are several other components sending the same sort of signal to the PCM, but the ECTS is the biggest culprit when it comes to this kind of problem.
Jim
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You've got a 10 second car, huh? How fast does it go on the track? | |
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12-17-2003, 03:13 AM
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#8 | | Community Moderator
Join Date: Jul 2002 Location: Canada
Posts: 3,400
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Definetley start with the coolant temp sesnor. Also checkthe connecter to make sure that there is no corrosion in it.If so then replace as well.
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12-17-2003, 04:25 AM
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#9 | | Senior Member
Join Date: Oct 2002
Posts: 682
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Quote: |
Originally Posted by Taco_Master When I got the car around August, I was getting about 35 mpg. Then I started working on the engine, like replacing spark plugs, which were shot, and fuel filter, etc. Now I am somewhere around 25 mpg. Thats quite a hit when I drive about 100 miles a day. From what I have talked to others about, I think its the sensor that is gone.
I am sort of a newb to all the engine work. I can wire a sound system blindfolded, but am new to most of the motor and parts. So if you could tell me what the thermostat and ECTS would do for me, that would be great. To the best of my understanding, the thermostat just regulates how hot the engine gets before it starts to cool itself down. I am probably wrong, or just not fully correct. Just let me know. If you tell me what I should do, I will do it. | from Ssicarman
"Thermostat is in the lower rad hose (in the housing of course) and it would block the flow of coolant into the block with the lower rad hose one. The circulating one should work if you get one of the better ones. Not sure how much time and trouble it would be to get it set up into the heater hose lines. But at what point and expense is it worth getting the correct one from Saturn?"
If the thermostat is not working correctly, it might not allow the engine to warm up to the normal temperature in a short period of time.
What does the temperature gauage point to when the car is fully warmed up and how long does it take for the car to warm up?
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12-17-2003, 08:54 PM
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#10 | | Senior Member
Join Date: Sep 2003 Location: St. Point, WI
Posts: 127
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The car warms up and gets to good temps in under 5 mins. The same as I have always seen with my car. Any thoughts?
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