440 Select Fuel Injector Wiring
 

So i am kinda stuck on this, the diagram that comes on the ECU shows primary and secondary injector +12V coming from Aux 1 for front Rotor and Aux 4 for rear Rotor, but in a earlier thread "Simplified Wiring Diagram" it says to just get 12V+ from a independent source like a fused IGN 12v+, Shouldn't the ECU be able to power these?? I am just confused on how the Primary and Secondary share a !2V+, i would think it would be Primary split to the other Primary and so on...

Thanks

Check this out.

It doesn't matter if all 4 injectors share a 12v ign source, they barely pull any amperage. Each injector gets trigger from the ground signal provided by the ecu output.

Thanks guys!

I will use Aux 1 and 4 for ease of wiring since they are the next pins over.

Now my other question is in WARI under the Aux out tab and in the drop down menu for TYPE what would I select? I noticed injector duty cycle as an option???

Thanks

Hang on.. Aux output 1 and Aux out put4 doesn't give out 12V! Can you send me a pic of that diagram please?

Injectors should be connected to a switched 12v on one pin, and the other set of pins will go to 2U, 2Y, 2Z, and 2V on an e420d/440 ECU - injector output pins 1-4

Thanks.