Catalytic Converter.

[taylor1038]

Has anyone had any trouble with their Aveo's Cat? My 2007 Aveo LT has had a check engine warning on for a few weeks and I just got it scanned and it appears the Cat is the problem. I'm just looking for any input or advice and to see if this problem crops up often.

[petrified.rabbit]

what was the code?

o2 sensor issues are more often an issue than the CAT itself, but you never know.

[taylor1038]

I don't know the specific code but I definitely saw something about the cat pop up.

[avguy]

what was the code?

o2 sensor issues are more often an issue than the CAT itself, but you never know.

+1
And for those of us who DIY, but don't own much diagnostic equipment, this is almost an automatic thing to try for the cat-related codes. It's much less expensive than a new cat, a relatively easy job to do, and probably will eventually fail, even if it hasn't already. Of all the "part hanging" things to try, this one probably makes the most sense.

[MacFady]

There is a B2AAA code that is a pending catalytic converter failure code (forget what it correlates to, P04....). Most likely it is a failed post CAT O2 sensor. Are you throwing other codes? Is the car otherwise running fine? Some other codes related to this would be:
P0036
P0138
P0140
P0141

If your sensor is bad, then the ECU is also going to report a bad CAT or a pending CAT failure.