Dreaded check engine light came on ...with back to back codes reading p020-p030.. Banks 1 and 2...is this a faulty sensor or do I have to change the cats....someone help a brother out.....thanks

 

Check that p0420-p0430...

 

Och I get no love...can we at least talk catless exaust on cargraphic I have now...

 

What is your setup? Stock exhaust? Tune? etc.? I did not see it anywhere. That may help with a Dx? Before I would go to the Cat soultion, I would suggest checking/changing the O2 sensor(s)..

Also, this is some good info at least for a data point...

LINK HERE

Good luck!
DC

 

Tuned cargraphic exaust.. 3k on exaust with that many I'm hoping it's the sensor..

 

Yes...Unless there was a defective Cat, I would think it is most likely an O2 sensor(s). I am not sure, but based on the issue, maybe the post Cat O2 since it would be getting the follow up reading and thinking the Cat is not working effectively?

Good luck...

DC

 

I had a similar issue with my cargraphic (since replaced). You will probably need to have some sensors turned off (if post cat) to cure it. Might not be bad sensors at all.

 

That's good news...I'll keep you posted as I'm going to be working with cobb custom tune in comming weeks...