P0430 for 1999 Chevy Suburban

My friend’s husband did the work, because my husband was deployed. I had it changed, because I was having problems with the drivability then and 2 places I took it to swore up and down that the catalytic converters were bad. After they were replaced, the problem didn’t go away and so we changed out all the O2 sensors and then finally the pump. All along the problem was the fuel pressure sensor. All this was done back in January.

Could there be something wrong somewhere else that would cause the O2s or the Cats to go bad?