jpare Posted April 25, 2006 Share Posted April 25, 2006 I checked my main O2 sensors and they read 6.1 ohms of resistance. I believe that is within normal range. The sensor itself was coated with carbon, which tells me that the car is running rich. Barely passed smog test after replacing EGR vacuum modulator. Any thoughts? Quote Link to comment Share on other sites More sharing options...
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