BAlford Posted March 28, 2002 Share Posted March 28, 2002 I have a 1982 280ZX with a 1983 wiring harness including the digital dash. How do I connect the tach to the dist. I have traced the wires. Starting at the tach, I think the correct wire is LgW (light green w/white tracer. According to the manuals that I have it runs to a resistor and out of the resistor it is L (blue) and that wire connects to the dist. If so where is the resistor located and will I have to change the resistor. The JTR manual says that I will need a 15K ohm resistor form radio shack. Will that resistor be the correct one for the digital tach? Do I just replace the original resistor with the 15K ohm and where is the original resistor located in the car? See my car waskomtexas@waskomtexas.com Quote Link to comment Share on other sites More sharing options...
Guest greimann Posted March 28, 2002 Share Posted March 28, 2002 I'll qualify my response in that I don't have digital instrument panel, but I have wired my ZX for a V8. Your wire traces seem to be correct. I believe the resistor is located on the drivers side inner fender, just behind the washer bottle. It is a big sheetmetal clad thing. The way I adapted my analog tach to work was to connect the tach lead from the HEI distributor directly to the tachometer, and then adjust the potentiometer on the back of the tach so it read V8 RPM correctly. I don't know what you have in the digital unit, but if there is a potentiometer back there, you are good to go. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted March 28, 2002 Share Posted March 28, 2002 Thats a good question....thats why i got a 72. I can only imagine all the wires under that dash....woooeeeeee! Good luck, if I were you i'd rape the whole digital thing out and slap some analog tach/speedo setup. Good luck. Quote Link to comment Share on other sites More sharing options...
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