Can you shut off all the evap codes? Just to make it run that monitor? I know on my 04 it wouldn't run the cat monitor when I installed the non foulers on the rear 02 sensor. I drove it thru at least 15 drive cycles and 400 miles. When I shut off the P0420 code with HPT and reflashed it that monitor was run instantly. They won't run the evap monitor if the cat monitor has ran.