30K miles & CEL w/P0420 & P0430

[byathread]

Just got the resonator replaced. Sounds quieter, obviously.

I'm still left wondering what fouled/destroyed cats and destroyed resonator.

I'll just be monitoring/logging fluid levels going forward...

I appreciate the input from everyone here and welcome any further thoughts on the matter.

 

[JasonH]

Just got the resonator replaced. Sounds quieter, obviously.

I'm still left wondering what fouled/destroyed cats and destroyed resonator.

I'll just be monitoring/logging fluid levels going forward...

I appreciate the input from everyone here and welcome any further thoughts on the matter.

If you plan on keeping it awhile, I suggest springing for an extended warranty. Repairs on these vehicles are not cheap, and it's likely worth the piece of mind. Someone else posted that Covert sells extended warranties at a reasonable price.

 

[FlyBry]

One would think any defects in the material or workmanship of the Cats would have shown up before your trip. Sounds like the Cats overheated and cooked themselves. How is a good guess, but coolant or excessive oil (or fuel) can do that. If your Cats overheated to failure, and cooked the Resonator, plan on a new muffler in your future if the 2019's are as thin as the 2020's.