Computer

Is Thier A Module That Controles The 02 Sensors, If It Went Bad Will It Throw A Check Engine Light.....

The PCM (powertrain control module) uses the data from the O2 sensors to adjust fuel delivery to minimize emissions. The more likely culprit is an O2 sensor is bad. It would definately throw a code. If the PCM went bad, you'd likely get different codes than if just the O2 sensor went. What year is your car? Do you know what code(s)you are getting?