2G ECU wiring for shift light?

[spoolin95]

Can anybody help me? I need to know which wire on my stock ECU goes to my tachometer (RPM's). I have a shift light and I'm too lazy to go through my firewall and I would like to know if anybody knows which wire is for the tach? PLEASE HELP ME

 

[steve]

Can anybody help me? I need to know which wire on my stock ECU goes to my tachometer (RPM's). I have a shift light and I'm too lazy to go through my firewall and I would like to know if anybody knows which wire is for the tach? PLEASE HELP ME

The stock tach gets it's input from the power transistor output that goes to ECU pin 58.
http://www.vfaq.com/mods/ecu-harness-2G.html

Steve