2000 Burb throwing P0430 code and blowing Cigar fuse?

[Lancem]

It has happened twice now, I get an SES light, go to check with my scanner and no power to the plug, replace the cigar fuse and then find that I have a P0430 code. What does one have with the other?? Exactly what all does the cigar fuse power up? The P0430, at 250 K miles would it be worth replacing the sensor or just figure the cat is on it's way out?

 

[Scottydoggs]

https://www.obd-codes.com/p0430 one has nothing to do with the other.

 

[Lancem]

OK good, guess I thinking the could be somehow since I was finding the one looking for the other!