Just one last update for the day, before i run out of daylight.
Not enough time to do the actual job of removing pump or section of pump, but i was curious enough to remove the hard metal line that connects all of the rubber lines to the pump, and do a test on the pump directly in this manner.
With the engine off, i can do a hand pump test and it holds vacuum. I had not tried this with engine off when test point was on the rubber lines though, only while engine was on. So i don't know if this concludes anything.
With the engine running, it was the same as before and i do not get any vacuum with hand pump.
I also was surprised that the engine didn't shut off using the shutoff button but rather stuttered. Then when i pulled off the connection to pump and hit shut off switch it shut off fine.
This doesn't make sense to me but i don't actually know what i'm doing