My check engine light came on in my 2008 chevy silverado?

[michael]

I ran a check and got these codes: P0036 and P0141. What do I need to do? Is it something I should take care of a.s.a.p? How much do you think it would cost to repair if necessary? Need help!! Lol!
The problem is I installed an exhaust and intake. Do you think that would matter?

 

[aparks956]

take off the panel on the side of the drivers side between the door and the dash, turn the key to on and press the button, when it starts flashing, press it again, then the light should go off