RPM wire .......please help

mama

Fresh Recruit
dear....
please help me....i change my techno meter.....old one does not have rpm ...so i change a techno meter with rpm ....but i saw that all are working fine .. but one line is missing that one is IG- line.... after research online i found ne + and n- line is for rpm...but i don't know which line i have to add with IG- line...or you can sugest me to connect my rpm line. :confused:
 
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