ok...This has probably been covered a time or two..lol But I looked at the sticky and searched a bit and I'm still clueless.. So here it goes..

I'm pretty sure I have the factory tach... I found my factory tach plug... it goes, grey,black,orange,black....

My tach has red,black,grey, 4 yellows of which two are ground and two hot...I did figure that out

So if any body knows which wires go where without having me look at a skimatic that I can't understand, I would be greatfull !!!!

Oh and my truck still has no battery power yet, so it is kinda tuff to test out the wires...

Thanks a bunch

 

Check out BC847's tach install thread in the sticky.

 

Ok, I re-read it again... I still don't have a clue which way the wires plug in.. I did see a pic of the plug in another thread... it goes grey,red,orange,black...

If that holds true to my plug, I guess I run grey to grey, red to black, yellow hott wires to orange, then 2 yellow and black to outer black wire on plug... Does that sound right...

 

Some pics might help.

 

Well this is basically what I have, except on my plug, the one next to the grey wire is black... The one in this pic is red... So... Thats what has me guessing...

is the black wire on the tach a ground wire??
do The yellow lighing wires go to the plug..

https://www.dieseltruckresource.com/...hp?photo=33304

 

Alright the weekend is here, I hope somebody can help me out... Maybe look at the colors on the wires going to the plug.... Thanks