catalyst system efficiency below threshold

More than likely this issue is due to a failed converter, but we need to run through some testing to confirm this because there is a chance that you have an o2 sensor issue.

Here is a video that will help with doing this testing and replace the converter if it proves to be the issue:

https://youtu.be/kNXh1Lphzr4

This video is on a different vehicle, but it is going to be similar:

https://youtu.be/1Hh12_mWw8k

I am attaching the process from the manual on how to replace this as well.

Please run through this info and let us know what questions you have on this.

Thanks

test