Squirtbottle09

My truck has been throwing po172 - po175 (running rich in both banks) codes since I installed my CAI. If I reset the battery and drive with a heavy pedel it wont trip again. But if I easy foot it, then the light will turn back on. I have already cleaned my MAF sensor and everything is installed right. I have a AEM brute force CAI. Before the CAI was installed it ran fine, but why is it running rich with it. Shouldnt it cause it to run lean?