Thanks Duke. Today, I passed emissions with great results:

Emissions Results
Standard----HC-----CO%----CO2%---RPM
Standard----100----0.50-------------2500
Test 1------169-----0.43----14.4----1702----failed HC
Test 2------136-----0.55----14.2----2452----failed HC and CO%
Test 3-------21-----0.05----15.3----2466-------PASSED

On the 3rd try, I changed the sparkplugs and added a bottle of Techron to the gas.

Before the 3rd test, I was driving around for about an hour running errands with the AC on. Although I didn't take the car on the highway, I did drive about 40 mph for about 15 miles and I idled the engine at 2500 rpm for about 5 min prior to testing.

Anyone have an idea which of the following contributed the most to my low emissions?

1. Replacing Sparkplugs
2. Techron in the Fuel
3. Warmed up CAT with AC load