I have been unable to achieve a cylinder balance test result on my car with all electrical loads turned on. The car is a 2004 VY Holden Commodore with 3.8 liter V6. I don't think that it has smart charging. However if I also load up the engine by putting the car into Drive at idle with the brakes on...

Thanks for your welcoming reply Iver. During this learning period my aim is firstly to understand what I see happening on the screen. Only then will I know if I can afford to ignore certain aberrations e.g. noise spikes, hash, shifting earth levels, etc. Later my perspective will be (as yours) to fi...

Hello, My name is Kim. After 50 years engineering in the auto industry I still enjoy troubleshooting anything mechanical/electrical. Stepping up from the trusty Fluke multimeter I recently bought my first scope, an affordable 2204a. Of course that was only enough to whet my appetite so it was quickl...