Rep Power: 204

Alright so the car is 05 civic and is boosted and is running the aem fic. When i start the car in the morning to warm it up before i drive it it will idle at 11.5 to 12 air fuel and set off the dtc P0134 primary 02 no activity. I can drive down the road any distance and it will stay running around 12af until i shut the car off and restart it. After I have restarted the car it will run fine and wont throw anymore codes.
But if i drive the car immediatly when cold the car runs fine and doesnt throw and codes.
Also when i start the car after the motor is already warm when it tries to set the idle it stalls. If you touch the throttle for a sec upon startup it wont try to stall.
Anybody have any ideas what is causing this because its driving me crazy

 
Rep Power: 204

anybody have any ideas? I really dont feel like buying new o2 sensor unless i have to.

 
Rep Power: 233

Sensor 1 is in the exhaust manifold on LX and DX, right in front of the cat on EX. Torque is 33 ft-lbs