I thought it was weird that both codes came on, on 2 separate cars within a week of each other. Is this bad luck or is there more to the story?
car 1: Nissan Frontier 2015 ~60,000
car 2: Land Rover 2017 ~45,000
I live close to the ocean and by some farm land.
Thanks, K
It sounds coincidental. Here is the diagnosis and some things to check -
https://www.autocodes.com/p0430_nissan.html
Did you check the fuel trims to see if anything funky was going on there? Usually, it is something upstream of the CAT that causes this.
Thanks for the reply. I have very little experience with car maintenance and have no clue what you are talking about but, I did google what you are talking about and I will educate myself on the topic. Thanks for a starting point 👍