once a year
at least 20 to 21 years
If it is leaking or rotted
more than likely if your state requires emissions testing.
About 60 miles in order for the computer to log emissions information to relay to the testing computer.
In the state of CT in the USA, if the vehicle is 25 years old or older it does not have to go through an emissions test.
If it came with one from the factory, yes if you want to pass emissions test.
your vehicle must have an emissions test for registration renewal, beginning when it is five years old. If your vehicle requires an emissions test, you will receive a reminder as part of your vehicle licence renewal application
Not if they test emissions.
there is no real way to test a fuel pump you just haft to listen to it. When you turn your key over you should hear it kick in. Listen for it to click and relay from the switch to the pump. Other than that you have no way to test it.
No
No, they do not.