Gas Smell

[Cruzin]

My ZR-1 has only 21,000 miles on it and passes the E Test every two years. So I assume the Cats are okay but notice a gas smell in garage after taking car out for a spin and it is sitting in garage for awhile. Wondering if Ozygen Sensors or charcoal cannister needs to be changed? Any Info would be appreciated. Thanks

 

[Dave91TM]

I have noted a gas smell on my 91. The first time it was a blown injector.
Since then the odd whiff emerges ,but I believe its just a poor gas cap seal.