Hi, I need help connecting my tacho up in my "93" 180sx. It has just had an rb20 transplant but the guys who did the conversion haven't had time to finally wire up the tacho.
  I tried connecting the rpm signal wire to the tachometer signal wire off the ecu but I had no luck. It won't supply a signal for the factory (in-dash) tacho nor the after-market one I have either.
Can anyone help me with this prob?
Thanks,
Stu