imitek

I have aem smart coils so dont use the external ignitor as they are built in
Am wondering can i use the old ignitor hooked up but with no coils atached to give a rpm signal ?

Or what other options to get rpm working

scotty305

iTrader: (2)

The OEM ignitor isn't responsible for sending the tacho signal to the dash in the first place, it comes from pin 2B on the stock ECU. The stock wiring diagram isn't very clear, but here's a simplified diagram:
https://borgtechnology.files.wordpre...cho-wiring.png

Unless your wiring has been modified due to an aftermarket ECU that doesn't send a tacho signal to the dash, you shouldn't need to do anything to make the tacho work.

imitek

thanks for your reply
i dont have stock ecu running motec standalone but do not have a extra output spare
im trying to find a way to get rpm working the only thing i can find is a motec ignition combiner but was hoping there was another way to get the rpm working