ALFAGTV6.COM

[75evo]

This might help you

http://www.mrm-racing.se/forum/forum/pu ... anos-guide

[75evo]

CDI hooked up to SM3. Thanks to Joe Beninca for answering all my questions.

https://youtu.be/ytQfD9dq7LI

[Alfaaa1]

More info on the coil pack wiring.

[Alfaaa1]

Hi, Just if someone can help and confirm,
On the original Busso 24v engines coil pack,
This is what I have worked out on the 3 pin electrical circuit.

[75evo]

As per Beninca

[Steve R]

Alfaaa1, your hand drawing is correct for the factory wiring. Trigger goes to one of the 6 ignitor transitors within ECU, centre is earthed to the head (or wherever you ground it), 3rd pin is fused 12v and only on when ignition is on.

Can't comment on CDI !

[Alfaaa1]

Thank you 75evo and Steve R.

Will wire up my Gotech Pro X ECU soon.

[105gta.]

Alfaaa1, both SteveR and 75evo are correct. You original drawing is capote the for what you want. (Transistor type ignition, controlled by the ecu) evo75’s drawing is also correct in that with a Cdi you reverse the polarity from the Cdi into to the coil. But you’ll notice in his drawing the positive of the coil goes to the neg of the Cdi. Which also correlated to your first drawing of the orientation of the pins. Yes the centre pin is direct to earth.

[Alfaaa1]

Thank you 105gta.
Will wire up soon , see how I go.
Regards

[Alfaaa1]

Hi to all,
At last I am coming close to finishing the GTV 3.2.
I am fitting the Gotech Pro X stand alone ECU.
Have been advised on the coil packs to only use the 2 pin that have a restintance 1ohm which are the outer pins straight 12+ power and ECU.