1998 Honda CRV Stalls with 3 DTCs

A friend called me to check out this car for driveability problem such as car is loosing power to the point it is going to stall then will run few miles then eventually stalled. It wont start for about 15 minutes then it will then stall again. I went to his place and got my CP9180 actron portable scanner to retrieve any DTC. At first I was able to retrieve a P0420 code only. I told him he may have a restricted Cat. 1st Question: Can a bad/restricted CAT cause a car to stall? After 2 days I asked him to bring this car to me for further evaluation. He stalled thrice about the same 10-15 minute interval before it starts then run for about 6 miles then stall. When he finally arrived my place I was able to retrieved 3 codes: DTC : P0420, P0130, & P0131. 2nd Question: Can bad 02 sensors cause the car to do these said symptoms? I thought this may just be coincidence and probably a bad gas pump/system? Why wasn't there any code related to fuel system or any codes other than P0130, P0131 & P0420? Please help. I will need to change the CAT anyway so should I do that now? Thanks a lot!