2003 Tacoma v6 P0113 & P0102

Hello all!!! So I need some good avice or information you can share from personal experience. I have a 2003 Tacoma with a V6 and it's all stock except for a lift. So on to the issue, I started to notice that I was getting bad gas mileage for around a week and a half before my CEL came on. When it came on it listed P0113 & P0102 as autozone ran the diagnostics. My vehicle starts with no problem and the idle seems fine so I have excluded the IAC valve, but either way my truck don't have an IAC...?? So weird! I guess it has an ISC.(idle speed controller valve), but what's weird is autozone don't carry that part, just IAC's which my truck don't have. Now I did notice my gas mileage dropped from like 21mpg to 10-13 MPG. So I figured I'd change my air filter and I cleaned my MAF but what I didn't know is that the AIR INTAKE TEMP SENSOR is built into the MAF. I just wanna fix my truck because the MPG is hurting me badly.. I DO APPRECIATE ALL YOUR HELP!!!!!!