That first one is low idle, which is likely related to the second, which is quite important: P0301

Have a look.

ok i know what they mean but how do i fix them
P0506 Idle air control system RPM lower than expected ON 2 CCM

506 is low idle. That's normal because you re-set the ECU.

You need to drive the car a few miles so the ECU is reprogramed.

301 is mifire.

That is common. nothing to worry about.

Once again you need to drive the car.

Two miles to work then two mile to home isn't enough.

my friend(he is a mechanic) he is checking the car right now he said im gonna need a couple of gaskets because they are worn out already and leaking oil and that im gonna need a new coils i didnt reset the ecu how do u do that???

where could i find some upper intake manifold gaskets for reasonable prize????