The catalytic converter is most probably broken
only in California
Get it fixed.
Yes if it is emissions related.
If you are asking this question then your car probably needs an emission test
Yes. Any faulty emissions control sensor, including knock sensors, will result in an automatic fail of any emissions control test, period. It doesn't even matter if your vehicle's actual exhaust emissions are within acceptable limits. In most cases, once it is determined that a sensor is bad, the test is ended immediately, and considered failed.
The car failed because it has a problem The problem will require repair There are literally a thousand possible problems, each with a special repair needed.
In the state of Georgia, an emissions test must be passed in order to buy or sell a car. If a dealer sells a car to a customer and it fails emissions, the dealer is responsible for it.
Then replace it.
When one is looking to learn how to do an emissions test on a car the best place for them is the online website Youtube. Youtube offers many great tutorial videos for free.
Probably fix what's wrong.
Problems with the oxygen sensors are quite likely to cause emissions test problems. The car computer cannot properly adjust the air/fuel mixture to regulate the emissions.
Any Midas of Pep boys location you can get your car tested for free.