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I don't believe there is an O2 sensor. There is an engine coolant temperature sensor (which I presume is working because the temp gauge works), a manifold pressure sensor, a throttle position sensor (which I replaced), an air charge temperature sensor, and the EGR valve position sensor (which I replaced).
The gas in there was 3 years old, but now I burned it all off and put in new and it didn't seem to make a difference.
The catalytic converters smoke and put out an awful smell after I drive it around for a while, I wonder if they are getting clogged up. They unbolt, I might take them off and drive it around with straight pipes and see what happens.
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