droopdog7

Good day all, I have a question regarding smog that I could use some help on. I have an 2000 Acura RL that has had an error code for a while. The code is P0420. Anyway, I have not paid much attention to it, except, that I knew it would be an issue come smog time. I live in CA, which I know makes things even more difficult.

Anyway, having a code scanner, I went in a erased the error a day before the test. What I did not know at the time is that act of erasing the code would cause in error in itself. It did.

Now, the interesting part is that the car passed the visual inspection and he emissions test but not the functional check. So according to the results, emissions were okay.

I now know that to pass, I would need to run the car through a cycle or two to retrain the computer. The problem is, anytime I do that the error code comes back. Usually, within 20 miles or so.

And did I mention that the smog technician did not even mention to me that my car failed. I had no idea until I got the DMV paperwork stating it instead of my tags.

So, anyone have any clues at what may be going on?

B(eighteen)C

whats the code for?