White Diamond
05-23-2010, 08:00 PM
I purchased tach model #34200-93J00 (performance model with a red needle) to replace my older model #99105-80001 (white needle). There were no instructions in the box but all the wires pluged right up except one. There is a second gray wire with a female quick connect on the new tach that was not on the old one. Can anyone tell me what it should connect to?