Bank one is "LEAN" - get a good bottle of Fuel Injector Cleaner and see if that helps.
You cannot reprogram it. A dealer can get you the Master Code if you've lost it.
Look inside the trunk. Should have a sticker on the left trunk arm.
inside the car
Underneath the trunk lid
Code p0430
the door code number is on a sticker inside trunk lid
look on the trunk hinge there should be a sticker with the code on it
You won't know until you get the code read.
Look on the trunk lid support arm.
You will find it on the right hinge of the trunk
Check inside the trunk, on the lid arm.
Ignition coil D primary/secondary circuit