- 05-29-13 05:46 PM #31Cadillac Owners Enthusiast
- Automobile(s): 2004 CTS-V Raven, StainlessWorks header back exhaust
- Join Date
- Jul 2012
- Wildomar, CA
Since one is not throwing the code... Swap your O2 sensors (the rear ones) and see if the code swaps sides or not. If it does, it's the sensor, if it doesn't... Its the cat.
- 05-29-13 05:52 PM #32
Re: CTS-V O2 sensors