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Gauge installation issue PLEASE HELP?


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Morning guys!

 

Own a 1976 280z stock. I recently received a very generous Christmas gift of full Intellitronix gauges for the Z (Speedo, Tach, Fuel, WTemp, Oil press). I am trying to delete the clock and voltage meter. Each gauge comes with 4 wires (Power, Ground, Signal, Highlight Dim)

 

I have installed the Fuel, Wtemp and oil pressure gauge in the appropriate location by cutting the connector off the stock gauge, splicing and taping into the connector with the new gauge and then plugging it into the stock harness via the stock connector. I was able to get a image and reading from all three gauges. I then decided it was time to move along to the speedo and tach. As soon as I removed the tach/speedo I have lost all power to my 3 smaller gauges. I attempted to reinstall them but realized I had already "hacked" into the tach with the new tachometer so its not possible for me to recreate a stock tach setup. I don't seem to understand why this is happening, checked all fuses as well. Is it a better idea for me to wire all the gauges off 1 power, 1 grnd, 5 individual signal wires, and 1 headlight dim wire?

 

I apologize if this is vague, electrical work is daunting. Thanks for any input!

 

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Morning guys!

 

Own a 1976 280z stock. I recently received a very generous Christmas gift of full Intellitronix gauges for the Z (Speedo, Tach, Fuel, WTemp, Oil press). I am trying to delete the clock and voltage meter. Each gauge comes with 4 wires (Power, Ground, Signal, Highlight Dim)

 

I have installed the Fuel, Wtemp and oil pressure gauge in the appropriate location by cutting the connector off the stock gauge, splicing and taping into the connector with the new gauge and then plugging it into the stock harness via the stock connector. I was able to get a image and reading from all three gauges. I then decided it was time to move along to the speedo and tach. As soon as I removed the tach/speedo I have lost all power to my 3 smaller gauges. I attempted to reinstall them but realized I had already "hacked" into the tach with the new tachometer so its not possible for me to recreate a stock tach setup. I don't seem to understand why this is happening, checked all fuses as well. Is it a better idea for me to wire all the gauges off 1 power, 1 grnd, 5 individual signal wires, and 1 headlight dim wire?

 

I apologize if this is vague, electrical work is daunting. Thanks for any input!

Looking through the wiring diagrams in the 1976 FSM, I don't see how disconnecting the tach or speedo should be able to remove power to the other gauges - have you checked the stock wiring diagrams to make sure you were splicing into the correct wires?

Also, the connector for the clock only gets battery power (hot at all times) - no switched ignition signal goes to it, so that connector probably won't be helpful for you.

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