First, a EVAP leak would throw a different code set P0455, P0456 etc
P0430 NISSAN Possible Causes:
Faulty Three-way Catalyst Converter
Exhaust Tube
Intake Air Leaks
Faulty Oxygen (O2) Sensor
Faulty Fuel injector(s)
Leaking Fuel Injector(s)
Faulty Spark plugs
Improper Ignition Timing
Faulty Engine Control Module (ECM)
Dirty Air Filter
Considering the age / mileage of the vehicle …
An extremely low mileage vehicle can develop issues from not being stored properly for long terms.
Wouldn’t be surprising to hear most if not all hoses, belts, rubber components will require replacing quite soon.
Along with possible brake system and cooling system problems.
Also keep an eye on gaskets.