2012 GMC Yukon Denali 6.2l

What is your question?

I've replaced the purge solenoid valve on the motor, the evap canister filter under the car, and the gas cap on my wife's car and I'm still getting the small evap leak engine code. Car runs a little rough on the acceleration because of it. It's driving me nuts trying to figure this car out. Can anyone lead me in the right direction?

What makes this problem better or worse?

It's the same all the time.

How long has your 2012 GMC Yukon had this problem?

6 months now.