RW> I had to do this several times on the Z28 while in California, as I was   
   RW> getting a O2 sensor code (check engine light). Come to find out that it   
   RW> was the gasoline I was using, so I went to a different brand and the   
   RW> codes stopped appearing as often. They've never returned while here in   
   RW> Texas.   
      
   Most cars have more than (1) O2 sensors these days.  One before the cat - and   
   one after the cat.  I would imagine your Camaro is like that.  Did you find   
   out which one was throwing the code?   
      
   RW> That must be a Chrysler thing. GM computers are wiped clean with a reset,   
   RW> history and codes included.   
      
   My Monte Carlo is the same way.  The software I use shows the tests that are   
   to complete based on the type of vehicle.  The final test that takes many   
   miles and driving is the "EVAP Test".  The other ones happen fairly quickly.    
   Once that last test completes, then it shows "Ready to be tested" and would   
   pass if there are no codes.   
      
   RW> Yeah, I don't think my Suburban gets that kind of mileage. My Silverado   
   RW> gets around 22 max highway in OD, 15 around town w/4.8L and only using   
   RW> 3rd (1:1) gear.   
   RW>    
   RW> The suburban is pretty good on fuel, but it's a 1989, before OBD 1 even.   
      
   Yes, not bad considering how huge they are.  I was looking at both a 1997 and   
   a 1999 Suburban.  Both show 12/17mpg, which on the highway isn't too bad.    
   They are just massive vehicles.   
      
   Going to replace the blower motor in the Durango tomorrow morning.  Just three   
   bolts while laying upside down on my back.  Piece of cake.  :)   
      
   - Mark   
      
   --- WWIVToss v.1.50    
    * Origin:  http://www.weather-station.org * Bel Air, MD -USA (1:261/1304.0)