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)