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Old 07-22-2003, 08:10   #1 (permalink)
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oxy sensor

i would like to test my oldmans au series 2 straight gas (green rocker cover) oxy sensor for the range because he has been complaining the car runs too rich so does anyone have the range of which the oxy sensor and what is the easiest way too test em with a multimeter.
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Old 07-23-2003, 01:46   #2 (permalink)
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Re: oxy sensor

Range should be from .2 - .8 of a volt. .7 is stoichiometric. Not sure what multimeter you have, if you have one with a bar graph (expensive) you can actually see the oscilations.
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Old 07-23-2003, 01:58   #3 (permalink)
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Thanks cobra do i check it while the car is runing.
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Old 07-24-2003, 00:55   #4 (permalink)
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Re: oxy sensor

Yes check it when the car is running at operating temp. There is 3 wires, i cant remember whcih one is the one you check, but set it onto volts on the multimeter. Don't forget you'll have to bridge ithe plug with a bit of wire.
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1999 AU XR8
14.594 @ 94.40mph
152.2RWKW (APS dyno)
Switchable Shift Kit, K&N panel filter, Lukey straight thru mufflers, momo gear and steer,
DBA slotted rotors/Bendix ultimate pads (front), Pioneer MP3 head unit and BA XR carpet mats.

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Old 07-24-2003, 05:02   #5 (permalink)
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Re: oxy sensor

Thank you for your help mate its the plug under the dash yeah.
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Old 07-25-2003, 05:49   #6 (permalink)
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Re: oxy sensor

NO mate its the plug that connects into you o2 sensor under the bonnet. You have to backprobe it with a bit of wire, and when you get a volts reading you'll know that you have checked the right wire. There is 2 white and one black, but as mentioned above i cant remember which one it is.

I forgot to add that you should rev it at 2k for about 20 seconds to get the sensor warm.
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