[vljbbeach]

My duremetric states fault codes are Leaks detected in Fuel system. Is it recovery vapor system? If so where do I start testing. Gas cap seal is good. Having trouble filling my gas tank to the top. Car will stall every now and again. Throwing fault codes. Clean throttle body and Maf sensor. No vacuum sound when opening gas cap. Seal is new. Can I test bleeder valves and how?
Thanks
Vin