Fuel Trims maxing out.

[turbo2086]

Okay I replaced my O2 sensor, and I used to get readings from rich to lean at idle. Like normal. Then I stopped getting them. I got my O2 replaced again by advanceauto for no charge. Still no readings at idle. I will not get readings tell around 2200 rpm. I'm sure its the warmer, but cant be the O2 sensor. Anyone off hand know what color wire it is, so I can possible test it, or find out whats going on. Since I have to start my car to warm up every morning now, my mpg is like 12. I can smell fuel coming out of my exhaust. My data logger says fuel trims are like 139.7% on L M and H.