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!

[@xuv5607]

Great video as usual Ted!

[@andrekemp5059]

Famtastic job

[@tedsmarinerepair8956]

@@andrekemp5059 Thanks for the positive feedback!

[@andrekemp5059]

@@tedsmarinerepair8956 I Realy appreciate your hard work.
It is hard to find People with Common sence it stands out like mountain in a valley

[@craigcwillard]

Ted. More on the volvo penta sensor trouble shooting. 5.0 osi-ef.

[@tedsmarinerepair8956]

Engine Serial # please

[@jose38706]

Great video! Have you ever seen a problem where a Gen V engine shoots High psi fuel pressure above 5.5k RPM? 3500+psi and doesn't respond to commanded psi?

[@tedsmarinerepair8956]

@jose38706 the hp pump is cam driven and if the pressure goes above the ecm range, then the issue is likely with the pwm control valve or a wiring issue.

[@jose38706]

@tedsmarinerepair8956 yes sir, makes sence. I had 2 things in mind before, either a faulty fuel rail pressure or the regulator valve that's installed on the hpfp. I currently have a p018c & P0315 code and it goes into safety mode when it detects high fuel pressure to avoid blowing the injectors

[@juancarlosbegega3429]

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