Yes, the multimeter method is the surefire way to figure out the knock sensor wiring. It is also how I ended up figuring it out. I believe that the pin designations on the modules are the same on...

I converted my 89 chevy astro over to the 16197427 (vehicle was converted to a 350 TBI a few years a go). I was having problems with the knock sensor wiring, originally I connected brown and blue...