GM GEN V Fuel Rail Pressure Testing and Function
I created this video to show how a GM Gen V 4.3/5.3/6.2L engines high-pressure fuel pressure sensor is located and and the differences between the 3 and 4 wire types.
I also did some testing with my students in the lab using DIACOM to show how the ECM responds to a sensor open and short to 5v reference.
A couple of additions are mixed in as well.
Enjoy!