I was watching your video "Here's How a Real Mechanic Checks a Used Car Before Buying", and using waveform analysis to detect compression and fuel pump problems. I have the graphing tool, but my 2008 chevy malibu v6 doesn't have an "efi" fuse. I've seen panel diagrams that show 2 fuel pump relays in the back panel, and 2 injector fuses (separate fuses for odds and evens) in the engine compartment's panel. Is there a way to use the graphing multimeter to analyze my car? What about the fuel pump? Where would I plug the fuse current loop? Thanks Scotty.
EFI = Electronic Fuel INJECTION.
Same as your injector fuses.
Well you can just put a loop on a power line that feeds the pump and then when you're done you can just side of the wires back together
You can pull out those 2 odd/even injector fuses to keep the car from starting to do your relative compression test and to do the fuel pump power draw test use the fuel pump fuse socket in the luggage compartment fuse box.
