XL7

I am in the process of adding my LC2 wide band to my truck. I have been talking with Justin from BBP and he says I am able to add it to my ECM. That way he can see it's read outs. Has any one on here done this? There are 2 connectors on the ECM and I am not sure which one I should be using. There is a black one and a grey one he as told me its deffently pin 55 but he wasn't sure which plug it was on. Any insite?

FetzerValve

It is pin 55. It's on the grey C2 connector. On my truck, which is a 2010, there are two connectors stacked vertically on the ECM. It is the lower connector. I went to GM and got a terminal to fit the empty space at pin 55. Simply connect a wire to the pin, shove the pin in the empty socket and connect the other end of the wire to the 5v output wire on your wideband.

You'll need to have Justin send you an update for the Autocal so that it can read voltage from the EGR pin.

XL7

Thanks FetzerValve I had already got it figured out a ways back. Did a bunch of digging online and found it.