Both these codes came up when I ran the codes. I've only had my car since August of last year, its an 08 SS/TC with 44k miles. When I first got it I'd get CEL quite a bit but then they'd go off after a day or two. I always assumed it was from bumps in the road, etc, because my car is on lowering springs so any imperfection in the road literally makes me pucker my butthole... anyway.

My car is trifecta tuned, it has a catless ZZP downpipe, not really much else done to it worth mentioning. I have been driving it a little differently lately, I usually just ride out neutral to slow down at red lights but lately I've been downshifting instead. My CEL has been on for about a solid two weeks. Anyone know what it could be?

 

bump

 

2270 is secondary o2 stuck lean. I got that one to now, changing it usually fixes that problem. I've killed 2 of those already, don't know how.

 

P0140 is also 02 sensor

Sounds like it's because you are catless or the sensor is failing.

 

Is p0140 secondary? If yes, get a new one

 

By saying changing it, you mean changing the sensor right?

And being stuck lean - just changing the sensor will correct the problem? And none of these replacements will affect the tune will it?