Manifold Gasket

Is this something I need to change intake manifold gasket Saturn is 200?

Hello to all of the 2000 Saturn SL SOHC my wife was a machine code P0507, which indicates a more than normal idle, that is the PCM not to compensate. After some line of research, it appears that these engines are subject to a leak in the intake are Manifold gasket. I am, to get some carbs cleaner to test if the line may be leaking. If, indeed, the poetry, it is easy to change me? There seems to be on a $ 300 job at an auto shop. I'm pretty proficient with tools, but I wanted to make sure that I am not about to enter my head. Thank you!

You can change the manifold gasket for $ 300? Sounds a good deal for me. There are far too difficult to do Handyman. When you tighten the screws more or less torque, you have leaks and problems. Who said it was the seal? The Internet or the mechanic?

Smoking exhaust manifold gasket