09 cobalt p0223 problem on 2009 Chevrolet Cobalt

I got this code after takin off and cleaning the throttle body on my cobalt, after unpluggin the the battery for atleast 15 minutes it seems the car idles normal between 800 to 900 rpm but i got this code showing up p0223. would that mean i need a new pedel sensor or is something im missing here?

Asked by for the 2009 Chevrolet Cobalt
Make sure the electrical connector is seated in the throttle correctly. Reset the DTC and do a throttle re-learn.
2 more answers
WHY did you clean the T-Body? What type of cleaner did you use, carb. cleaner? No code before?
double ck wiring. do you have throttle response?