I had a little trouble getting to the thing. Such an awkward position. I used 1/4" drive and extention. I found 3/8" drive impossible to fit.
I did soak, overnight, with pb blaster, and then again about an hr before I started.
When I got the bolt out, the cps came out with no effort whatsoever. I just lifted it out. I suppose it was the pb blaster. Cant swear to it.

Getting it back in was a little challenging. Just stuff the socket with tissue to keep the bolt from falling out while lowering into place, fingers from the left hand guiding things along.

I also found that the wire to the cps had been burned through. Im assuming the culprit was the egr pipe, which is in the neighborhood.

Thanks all.