2001 Volkswagen Jetta Gas thru A/C

Smells problem
2001 Volkswagen Jetta 6 cyl Front Wheel Drive Automatic 95k miles

I was wondering if u can help me out with my question:

i was driving on a local street, decided to overtake someone and floored the gas pedal, when I did that I smelled gas thru the ac. And the folowing day my check engine light goes. When the mechanic checked it, it said evap leak detected (gross/no flow).
the mechanic said it was the compensator valve, might that be the problem?