Agreed, a shop needs a Pico or MicSig. But I no shop
My tools can do all the measuring, I do all the thinking.
But duly noted, I no see where a Pico can tell you that you have a stuck-closed fuel injector. I made a test cable (cause I have extra toyota-denso style injector connectors) and started on #5 to see ohms, that looked good, then I did the batt test, no clicky. Ut-o, is it really stuck? Made call to the place that serviced the injectors, got info, bumped them with voltage higher than batt, just kept bumping the 1st one in +1v increments until it popped loose, about 28v seemed to work, just went around the horn using 30v. Vehicle runs great.
Lessons learned, and new fresh parts installed. Overall, me just tired & happy
Geez, even found that the valve covers were 120ohms to body ground! Why? I dunno, but the covers had nice free threaded hole on them, so now they are zero ohms to batt-.
