Hi,
to simplify my wiring i think about useing a switched 12V for the emu power supply. In OEM wiring i have a “small” KL30 wire with 0,5mm², which is probably not enough to supply the whole emu, but 3 “big” supply line comeing from a power relay.
The supply will be coupled to KL15…means all power line are turned on and off with KL15. Its written in the manual that this is possible, but are there any downsides useing it like that?
And are all the 12V supplies of the EMU internally connected or is it probably possible to connect some to KL30 and some others to a relay supply without supplying each other?
Hi,
I’m currently dealing with exactly the same situation on a VR6 BUB with ECUMaster EMU Black using the OEM harness.
Did you manage to find a proper solution for the power supply setup?
I’m especially interested in:
- whether you ended up using a permanent KL30 (+12V)
- or if you managed to run it reliably only from switched KL15
In my case, I also see strange behavior (radiator fan running immediately when plugging in the ECU), which might be related.
Would really appreciate if you could share what worked for you.
Thanks!
In EMU PRO +12V supply on B8 and B14 pins are internally connected to double the current rating. This a power supply for the ECU and H-bridges.
+12V switched on B15 is an input signal to inform the ECU the ignition is turned on and the device should start. This pin is not used to supply the power.
You can connect all these three pins together to the some 12V supply, but the delayed turn off function would not work.
In EMU Black Ignition +12V pin is used as an input signal as well.