Wide band sensor to factory ECU

Will a GM 2011 Silverado factory ECU except a wide band sensor.

No, however you can just bring the wideband into the scanner directly. I use an Innovate LM2 and a serial to USB adaptor to bring the information into my laptop. There's a wideband from AEM that provides an OBD2 pass through connector and transmits the wideband data onto the CAN bus where it can be decoded by the scanner too.