I have 3 crank sensors from 90 and 91 SHO's that I took off engines over the years, before I scrapped the engines/cars. I didn't mark them when I took them off, way back when, my bad. I know at least 1 was bad and I changed it out on my Titaium 90 years ago. I still have 2-90's and 1-91 that I drive around. Trying to figure out how I can Bench test them so I can junk or save for later. I don't really want to have to install them to test. Any help would be appreciated. Thanks