Finding  Fuel Pump RPMs Using Oscilloscope
Channel: Kurt Reynolds
Date: 2020-10-15

This video demonstrates how to find the fuel pump rpms using an oscilloscope.  This test is usually done to see if their are any bad commutator segments that are shorted to ground, dropping the amplitude to zero.  If a good rpm reading is known, then a reduced rpm reading could be indicative of a clogged fuel filter that needs replaced.