I finished fitting a microtech to an EF today.

It wont start consistantly.

When the microtech is plugged in I dont get a tacho signal from the standard ECU. The standard ECU is there to run the auto and stuff.

What is the best way to share the crank trigger signal so I can have the microtech connected and still get a good signal for the standard ECU?

Hmm it seems that if the stock ECU doesnt get a crank signal then it wont turn on the fuel pump.

I powered the pump separately and the car runs pretty good with its base map.

I still need to sort out this crank sharing business.

Fixed!

I swapped the 2 crank trigger wires around as suggested by a microtech tuner on another site and everything works perfect. It even idles without an throttle input.