need help with Aftermarket Tach.

Foreign Cars (honda, etc) General Discussions
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need help with Aftermarket Tach.
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vegasnotnormal
+1y
putiing in autometer tach in 99 rs eclipse. hooking up the green wire to the negative coil. once its hooked up it only reads half the actual RPMs. The car has 2 coils.

what wire does the green wire on the tack go to.
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