Check Engine light

Sounds like the catalytic converter is bad and don't drive it until it's checked out

My check engine light is on and wont go off. I was told small leak I changed the gas cap and reset the codes and the light came back on what can I do?

I am having the same problem. Any new informationon this problem?

Check engine light on
I had the code read at advanced auto parts store and came up as emissions control system (small leak) They told me it could be the gas cap so I checked it and had the codes erased. Checked engine light appeared again so checked under the hood and under the car for visible leaks from hoses could not see any. Can you please help me?

How does it drive? Does it idle rough? What about the fuel economy, has it gone down lately? You might need your fuel lines checked to make sure that there are no tiny holes that could cause leaks. Car electronic systems have a very low tolerance to even the most minuscule fuel vapor leak. I believe this is for "environmental reasons".

When you have a leak like this it's not a fuel leak, you might have a leak in the emission system. Take it to a shop to pull the codes and do a smoke test of all your lines. Give us the code next time and we can help with the diagnosis