What the heck is this thing ? I got it off a 22R
when I pulled the fuel pump. It was in-line with
the intake of the fuel pump. Could it be a
non-adjustable regulator, or a second filter ?
Blows air freely from one direction and not quite
so freely in the other direction (direction of fuel flow). No factory markings on it.


Also, here's a pic of the vacuum switch for the
deceleration-fuel-cut system. Very simple device,
but not sure if it is working properly. Supposed to be a closed switch (continuity) with no vacuum
applied (I verified that). Supposed to open when
vacuum applied. I tried to manually apply vacuum
but it wouldn't open. Does this thing require
more vacuum than the diaphrams need to open ?