O2 SENSOR - 900S

1990 SAAB Other

I have a 1995 Saab 900S, 2.3L, 5sp w/o turbo, 120K mls.
I need to replace my O2 Sensor but I need to know how many O2 Sen are on this car and how many wires they have. I can find universal type replacement sensors but they are either 1, 2, 3, or 4 wires, and I don't know how many wires my car's sensor have.
Can anyone help me out with that info please?
November 28, 2006.

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