Could anyone please tell me where the major grounds are for an early 240Z? I'm having problems with the lights and gauges on my car. Sometimes they work fine, and other times none of the electrically operated gauges(tach, oil press., fuel, etc.) or the dash lights work. I believe the problem to be a loose or bad ground, but if anyone has any other ideas, please let me know. Thanks guys!

 

THE MAIN GROUND IS FROM THE NEG BATTERY TERMINAL TO THE OUTER STARTER HOLDER BOLT