If you can get into the tank (maybe through the top outlet opening?) you can attach length of tubing to a stick (cable ties) then use the stick to guide the tube to the lowest part of the tank.
If you can't find the cause of the shut downs try shorting across or bypassing the OPSS. An OPSS can fail in all sort of weird manners. Been down this road.
ex TRUE GRIT
The diagnostic test for tank or some other problem in the fuel system is to run off an auxiliary tank. See post #5 (1)
Last edited by JOHN COOKSON; 06-01-2020 at 01:13 AM.
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