Well, I drove about 20 miles today, continuously at 40 MPH at part throttle with a 3/4 full tank of gas and no changes. The EVAP flag is still flashing.
I have 3.90:1 gears. Does RPM at 40 MPH affect this test?
read that link I posted carefully. you must be between 45 and 60 mph, 40 is too slow