Ever since i bought this car I have been battling with CEL the main two being P0113 and P0171, I plugged in the scan tool and looked at the freeze a lot of the numbers don't seem right, but I'm not sure what they should be reading I'll just post the pictures of it and maybe someone could tell me if they look right or what could be wrong?

Some problems I'm getting are a lag when stepping on the gas.
And I'm getting the "notorious cobalt first gear buck" in second and even 3rd.
And I've noticed a huge lack of power.
The car was running great even with the codes. I unplugged the mass air flow sensor to check the voltage and not ever since I plugged it back in it's been running bad. This car is full of surprises haha. Thanks in advance for the help!
While running after giving it a little gas.

 

Mods, miles, and model.

But given you have a code for the maf IAT, I'd replace the maf or swap with someone who has a good one for a short time, they're cheap enough. That will tell you if the open circuit is the maf or the wiring harness.

Also just out of curiosity have you tried cleaning the maf (I know its a long shot but wondering if it made any difference)

 

It's a 2005 ss with about 73k on it, I got it at 63k and it seems like whoever had it first took 0 care of it. The only thing that is done to it is a cold air intake that was on when I got it. The MAF that is on right now is a new one that I replaced to find the too lean code, now I'm still getting that code plus the Iat circuit too high.
I guess I've been to lazy to put the old one back in and see if anything changes maybe I'll try that.

 

When you do that check the wiring from the maf female connector back a ways.

 

and get it tuned