What is gas problem with the 2002 Camry and how do i fix this on 2002 Toyota Camry

There's a smell of gas after i turn the car off

Asked by for the 2002 Toyota Camry
Have the fuel 'system' checked for leak(s)...... on a lift..
Ive been told 02 camry's have a gas issue do you know what that issue is and how to fix it?
No issues i am aware of !! ... I own one.... no problems. Have it hoisted and checked for a gas leak!
Could it be the purge valve that gives of the smell of gas?