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OXS Light On...
I have an '83 SC and while driving last ngiht the OXS light came on. Car runs fine, doesn't seem to be to rich or too lean. Before I start checking all of the components and voltages associated with the O2 sensor circuit, should I just replace the O2 sensor and be done with it? The cat was replaced years ago with a test tube and the CIS was re-adjusted at the time. The O2 sensor has been in there for quite some time.
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