I need a little help with that darn white wire on my sunpro tach. The tach works fine but I need to know is it any other wire to hook it to,besides the fuse box or gray wire.Any one have the color code or diagram to show me? 1981 chevy monte carlo BIG AL
The sunpro sports tach has four wires for the tach
Red = +12 volts
Black = ground
green = tach signal from the coil.
white = instrumentation light panel.
Hope this helps.
Your question has been answered in the first post you made with the same question.
Vince
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