Quote Originally Posted by sgtpoliteness View Post
Yeah, if it was controlled by the PCM then the system would know when air was injected. But, since it's not, it's the factory Jeep system then the HO2 sensor has no idea that there's false air in the system.
Yes, the details of the system you didn't share in your first post are rather important. The stand alone AIR system injecting before the O2 sensors will make the engine run rich. You either need to disable that AIR system or run in open loop.