After you get the code pulled, I would recommend you do several other steps:

Pull all the spark plugs, and inspect their condition, and check to make sure they are gapped properly. No point ignoring something that might point you very quickly in the right direction of if there is a fueling issue, or a spark issue with one of the cylinders.

Next up, pull the air box, and inspect the condition of the air filters.
Maybe someone did you the favor of installing K&N filters, and all you would need to do is pick up a cleaning kit, and give them a service. You never know.

After that, you will probably want to inspect the transmission fluid level.
If it is low, top it up, if that is possible on the automatic transmission (I'm used to the manual).

These are steps I recommend that everyone does whenever they buy a used vehicle, just so that you know the condition of the car you are buying.

BC.