Finding Fuel Pump RPMs: 4.3L Vortec

In the first video, I demonstrate how to use an oscilloscope to find the revolutions per minute (rpm) that a fuel pump is running at. One caveat is "how do I find the fuse that powers my fuel pump when it isn't labeled: Fuel Pump". In the video, I don't demonstrate how I determined that Engine B fuse was the one that provided power to the pump. I believe most people empowered with the related schematic would be able to determine that on their own. However, I will try to post a pic of the fuel pump circuit on my truck with highlighted features.

Video 1: Finding Fuel Pump RPMs

The next video shows the math of why "60,000" is used in figuring rpms.

Video 2: Calculating RPMs