Throttle body injections (TBI) have what is callled a wet intake where the fuel is sprayed into the intake instead of the intake runners with port fuel injection. The fuel vaporizes and can make the air cleaner smell like gas.
if you smell it inside, it's the heater core it has a leak.
It's probably called a vapor canister (filled with charcoal to get rid of the fuel smell).
Bacterial growth causes your navel to smell.
what causes the smell of a crayon
yes there is a recall on that smell. Go to chevy's web site and look it up
AIDS
Standing at the left front wheel, with the hood up, the drain tube comes out of the fire wall, and drains onto the aluminum heat shield.
Check for a sickly sweet smell. The heater core is probably leaking coolant into the floor. The core is not repairable but can be replaced.
mercaptan
sweatingsmokingbad skinalcohol
a burnt rubber ball in the cardorater
sweat combined with the use lenght of time of the shoe causes that. Edit: It is the bacteria that grows in the warm, moist environment of our feet that causes them to smell.