I've had the code for about a year now. Car has 160k miles on and here recently I've done some research about it. It could be the Catalytic converter, O2 sensor, or a fouled sparkplug. The car doesn't have a miss, an when I turn the CEL off the code comes back up after about 15 minutes. I've...

Hello, I have an 03 eclipse GT 3.0. I bought it used and the previous owner put headers and straight pipe so it has no cats. It has a cel and doesn't pass emissions. My plates have been expired since last year Oct and a few days ago I got pulled over and got $300 in tickets. The cop told me...