Originally Posted by rivereye
Welcome to the Chevy Forums.
Change your evaporative canister filter, check to see all evap tubing is not blocked.
If you're overfilling your car at the gas pump(usually you can tell by the strong smell of gas inside the vehicle when you're driving away from the pump) the canister may be filling with gas, also contributing to the problem.
More than likely the problems aren't related.
When you say the battery is only six months old, where did you get it. Are the cables corroded and in need of replacement? Does the battery get wet or condensate?
I bought the battery brand new from Autozone, it is a Duralast Gold, the battery terminals are getting corroded more than the wires. The battery is not getting wet........... condensation I'm not sure of but I could be wrong.
I never fill the car up I only fill it up half way so I'm sure its not getting over filled. How can you tell if the Canister Filter needs to be changed?
Update at 11:21PM: What the hell............I just went out to my car and the CEL is off now. I took my code reader and it is still stored but the light is off.