JMF 240 Posted March 19, 2021 Share Posted March 19, 2021 Hello, I have a '70 240z that I upgraded all my gauges on. I heard I needed to connect 2 of the 4 wires that feed the Tach together to make sure I complete the circuit when I replace it with a new (Speed Hut) gauge. Does anyone have experience with this and can help identify what two wires in the wire harness I need to splice together? Thanks, Quote Link to comment Share on other sites More sharing options...
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