kvansic162 Posted April 2, 2007 Share Posted April 2, 2007 Is it better to use the tach wire off my HI-6 unit then to use the " -" side of the coil? Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted April 3, 2007 Share Posted April 3, 2007 Yes. I believe the HI-6 is a capacitive discharge box, and you should not trigger Megasquirt off the negative terminal of the coil when using one of those. A capacitive discharge ignition runs at several hundred volts, too much for either Megasquirt or most tachometers. Use the tach output wire. Quote Link to comment Share on other sites More sharing options...
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