new codes for the IAC problem

[MexStanger]

After changing the IAC for a new one since the stang has idling problems, the computer continues to throw codes and the check engine is lit again.
The idling problem is still there and these are the new codes that I have:
P1443 Vacuum system purge or VMV fault
P0175 System too rich (Bank 2)

Suggestions?

 

[sgarlic]

Could you give some more background info. about the car & the problems, like mods, mileage, when it started, etc.