novita1021 Posted April 1, 2009 Report Share Posted April 1, 2009 does anyone know how to wire up the stock rpm tach to the sr20 cuz i have the orange needles all across the dash and i think its a waste if i cant use'em...can i get some hepl here guys thanks... Quote Link to comment
RX510 Posted April 10, 2009 Report Share Posted April 10, 2009 Its my guess that the original wires should be hooked up the same. There will be 1 power wire, 1 ground wire, and 1 trigger wire (this goes to the negative side of the coil). Im not looking at the wiring diagram right now but that should be it. There may be power, ground, and lights shared for all gauges through the main plug, and the only wire you will have to hook up is the trigger. Quote Link to comment
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