Finally got the hang of diagnosing those intermittent electrical gremlins

For months, I was chasing a no-start on a 2012 Civic that would only act up when it was cold. The difference came after I borrowed a good graphing multimeter from a shop in Bellingham and watched the crank sensor signal drop out. Has anyone else found a specific tool that made a night-and-day difference on a stubborn electrical issue?

2 comments

2 Comments

thomasm402mo ago

Man, I used to swear by my basic meter, but a good scope is a total game changer for that stuff.

the_henry2mo ago

Yeah, I read a piece about how scopes show you the whole picture, not just a number. Like, you can actually see if a signal is clean or has noise on it. A meter might tell you 5 volts, but a scope could show you that it's a messy 5 volts with spikes. That visual change makes troubleshooting way faster in my experience.