G BODY INSTRUMENT WIRING - All Instruments

[Hetheca]

Hi all,
I have looked at a bunch of threads on gauge wiring and want to put together a master diagram for all of us that is in one place verses between many threads.
The factory wiring diagram is nice but not for everyone.

Here's a start but if everyone could chip in a help to identify the color of each, where the wire is coming from and what it's for I can then re-do this diagram showing each colored wire and what it connects to.

ie: A - Black/Red - Fuel Level - from Fuel Sender

[wazzz]

Good idea! What model year are you doing that work for? There are several generations of cars and they don't all use the same instruments. Speedo and tach signals, in particular, vary with model year and use different wiring colors.

[Hetheca]

Originally Posted by wazzz

Good idea! What model year are you doing that work for? There are several generations of cars and they don't all use the same instruments. Speedo and tach signals, in particular, vary with model year and use different wiring colors.

Good question. I have a '78, back dated with a 3.6 and 915, 3.6 dme. Currently sourcing '78+ gauges