Help with Wiring Please?

[spoolin95]

I need some help wireing up a shift light. I really dont want to go through my fire wall cause its too much of a pain. Please somebody tell me which wire going to my ECU is for the RPM's/Tachometer. I would greatly appreciate it. Thank you

 

[muskalade]

I did mine by going to vfaq for a pinout of the ecu, then find the rpm wire, and use a ignition power wire along with a ground and your in business. Its a very easy install

 

[L2RTSiAWD]

Only one thread is nessecary and this isn't tuning or engine management.