Can someone take a picture of the plug that the tach adapter hooks up to under the dash? I can't figure out which one it is.
Thanks!
Mark

 

Search button is your friend. lol

https://www.dieseltruckresource.com/...nstall+1st+gen

 

No, the search button is YOUR friend. YOU are my friend!!!
Thanks much.

 

lol, good to see people still have a sense of humor. You welcome glad I could help.

 

Does anyone have the pinout's for this plug? I want to make one because if I remember correctly the isspro pigtail was $100 bucks.

 

The OEM factory tachometer plug offers the following:

- 18ga Black = +12vdc for gage lights
- 20ga Orange = 12vdc Common
- 18ga Red = Switched +12vdc
- 20ga Grey w/light blue tracer = Tachometer Signal From PCM

Is this what you are looking for?

 

Mark, did you look in the sticky? BC847 did a very nice writeup that has all the info you need.

Oh, and I HATE it when people say "Do a search." If you don't want to track down the info, don't make a worthless post to tell everyone about it.

 

^apparently you can't read or you would have seen I meant that as a joke, and I posted the info he was requesting so therefore it wasn't just a post about using the search button.

 

20ga Orange = 12vdc Common <=Anybody know if this the negative lead or -12 VDC?

 

It is the negative lead (there is no -12VDC circuit in the truck).



As found in my write-up seen here ~ https://www.dieseltruckresource.com/....html?t=173561

 

Wasn't about your post, you did it right. Just a general statement of my preferences.

I also prefer that people be respectful when posting...

 

I would like to put a tack on my truck 1993 club were to find one????