I am waiting on my pico scope to arrive, and you have explained the operation in great detail, and made it very clear. By the way I have been following your instructions on the pico sample software on this as you explain for this and other of your videos GREAT JOB THANKS. PS were did you get the pen to write the notes on the relative compression test?
JUSTIN MILLER.......... when one or more pistons are NOT giving any compression. What would be the problems on the cars engine? ....... Do you have to replace the piston or the actual engine block is cracked inside that piston cylinder and have to replace the whole engine block?
It could be any of the things you have listed and more. You will need to do more specific testing of that cylinder to determine which component has failed.