there is no direct wire for the volt gauge, there are two signal wires from the unified meter and a/c amp, one constant power comes from the battery through the fuse block and a switched 12v through the fuse block all of which go to the triple gauge ecu then out to the gauge.

For my dash the only thing I changed was to add a speedhut tach which pulls the tach signal out of my GM ecu that I ran through a weatherpack connector. The coolant gauges runs off the factory sensor that I have threaded into the supply for the radiator and is run into a patch harness to my factory nissan ecu

 

has anyone tried to wire the coolant temp signal directly from the 350z sensor to the gauge?

has anyone tried to wire the malfunction indicator lamp signal from the gm ecu directly to the check engine light in the dash?

 

So If I was running the Tachometer wiring, I would run the wires from from OEM tach to the Nissan ECU or to the Stinger ECU? I do apologize if this sounds stupid, but I bought a 2JZ Swapped 350z using a Stinger 4424 ECU & the fuel gauge & speedo work ok, but No tach?? Thanks in advance for any info!

 

You are young to run the wire to what ever ecu is controlling the engine, so more than likely the stinger ecu

 

ok, Thanks, Thats what I thought but wanted to clarify....

 

Just a heads up Wiring Specialties offers a plug and play harness for this now.

It's available through us and it offers complete dash function.

 

^^^ You must be referring to the Entire harness? I dont need an entire Harness, My car is Running & driving perfectly fine right now, the Only thing that is not working is the Tach.....