I do not undestand your meter readings at all.
___sorry about the decimal point (.47 - .53 vs .18 - .24) Undersand now?

Pump clutch circuit needs testing.
___ I'll do tonight after engine is cold

I gave fuse #7 a twist per your comment on another post & continunity is ok.

SOV question
Out of curosity I tested vac to SOV from intake manifold is 19, but vac to EGR and Air Pump were "0" @ idle & 80 deg engine temp. Is this correct?

Bob