Hey ps2cho,

I don't know if you remember this, but I posted a while back about having low fuel economy on my car (300se). I just replaced the o2 sensor this past weekend, despite the readings being within spec. Duty cycle fluctuated at around 50% with the old sensor, and went to 60% afterwards before I adjusted it back to 50%. The exhaust doesn't smell as bad as before, and the car seems a little more responsive. I'm going to run a few tanks to see how many mpg I get, and hope that I don't have to swap the EHA