I've got an 07 l61 auto cobalt and HP Tuners standard. Has anyone hard wired a wideband o2 into a cobalt before like the fbody guys do where you tap the egr or AC high pressure sensor input and create your own pid in vcm scanner?

 

Yes, there is a thread on here somewhere, done using the A/C pressure sensor. Same idea as any other car, the writeup on HPT forums would work.