Want too sure if I should post this in the engine or electrical section.

1971 Cutalss S with 350 Rocket. Hit a nasty bump tonight while out for a drive. Tachometer stopped working, It lights up but meddle doesn’t move. Looked under the firewall and noticed a green wire and connector from it disconnected in the engine bay. Any idea where and what that green wire hooked up to? See picture below

 

I figured it out. Hooks into coil. Working fine now. YouTube is your friend.

 

Unlike FaceBook.

 

FYI that crimp spade connector isn't OEM.

 

Okay. It’s an aftermarket tach.