GEE-OTTO Posted March 26, 2009 Share Posted March 26, 2009 I hear of people going catless and CEL's and blah blah I am just curious if you go catless ( LGT or 2.5i ) how will your ECU know how to mix the fuel ? Isnt that the purpose of the o2 sensor to guage lean or rich condition or is it just to say to the ECU okay this much O2 is being released so this thing between the two sensors is doing its job? Link to comment Share on other sites More sharing options...
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