Do you have the green wire still hooked up when testing the 02 output???
___Yes, I didn't know it was to be disconnected during test.

Also, you want to try these test at 2K.>
___I did it at idle.

No wonder I'm getting my forementioned voltage readings.

Thanks for "the SOV story." Now I can see the tree in the forest. I'm sure it'll help others as well.

I'll do the "fuse/power feed" test but I think I'll have my inde maniac do the other Pump clutch testing you mentioned.

Bob