Okay my service engine light came on and I ran a code scanner on it. I got p2a00 and some other one that has to do with the idle being to high. I opened my hood and I have a air leak from bank 2 some where. And the p2a00 was for bank 2. I have no idea about the idle but I kno my car ia sounding real sluggish and running crappy with many back fires. I put premium gas so I know it can't be that. Any suggestions please help!!!!

 

The code told you where to go.

 

put more gas in

 

You mean you have a Vacuum leak. Which is a pretty big deal. That will cause all kinds of weirdness. Fix that and your idle might return to normal. Maybe the 2 are not related but could be. Not much info to go on.