First question is what the heck is the black little sensor on the back of my Z6 manifold. Its right next to the IACV, do i need it. Also i connected my battery after the swap and my gauge cluster was lit before i even put the key in. I put the key in and it got brighter. Any ideas? My car does not crank either. I think my ECU is faulty also, but the engine light wouldnt come on if it was right?