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Engine Rear oxygen simulator from URD

Discussion in 'Powertrain' started by pupo, May 31, 2006.

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    pupo New Member

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    Rear oxygen simulator from URD

    I bought a rear oxygen simulator for my 2002 Corolla, it has three wires, has anyone instaled this thing before? The instructions that came with it were for a Tacoma.
    pupo, May 31, 2006
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    nocpan New Member

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    in my 1995 rear o2 sensor has 4 wires 2 blac 1 white and one blue, black is ground white and blue are positive going to diff computers i guess...
    nocpan, Jun 14, 2006
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    Darkest Edge Guest

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    What is the reason you bought it for? If your car is stock, it is useless. If you running a exhaust with no catalytic convertor on a OBD2 system, then it might be worth getting. Because it will less likely trigger a code.
    Darkest Edge, Jun 15, 2006
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    felixrolla Guest

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    A corolla's sensor has 4 wires, +, -, sensor signal, and heater signal. you need a voltometer to find which wire is +, negative, and signal. The signal will alter between like .036 and -.036. Positve to positive current, negative to negative current on the sensor AND the simulator. Connect the sensor's signal wire to the car (leave the signal wire on dangling) and leave the fourth wire connected.
    felixrolla, Jun 20, 2006
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