Thanks for the info, my car has an MAS as pictured, but I've got a separate OVP relay, which you mentioned was also part of the MAS?
In any case that explains the missing Fuel Pump relay -- glad I didn't let the shop "replace" it.
Is the MAS prone to the same bad Fuel Pump relay symptoms as mentioned in the orginal post? Would that be a logical next step for replacement if a new fuel filter and new OVP doesn't do the trick?