Like others said, get the code and post back and we can go from there. No code = nothing but speculation.
Aside from the light being on, does it run as normal? As far as it smelling rich, that kind of thing is subjective and can be paranoia influenced by the cel. If there are no driveability issues then I would be willing to bet that it's something dumb like the gas cap not being tightened properly, happens all the time.
Aside from the light being on, does it run as normal? As far as it smelling rich, that kind of thing is subjective and can be paranoia influenced by the cel. If there are no driveability issues then I would be willing to bet that it's something dumb like the gas cap not being tightened properly, happens all the time.