The signal wire is the white one.nismonate wrote:i've got a ca in my 91 240 and im tryin to put my air fuel gage in but im having one small problem. i have no idea wether the signal wire is the red, white, or black one. SOMEONE HELP ME!!!!!!!!!!!!!!!!!and doughnuts are good.
True indeed!nocwage wrote:I find with most automotive electronics..White is generally Signal.Black is generally GroundRed is generally Power.
In this case it holds true.