Hello Booyaga,
Hi, im planning on running vems in my bmw, and was wondering what options i should choose when ordering my vems?
If you elaborate a bit about your actual engine type i can make some suggestions for you, M50 is a big difference from M54.
Is it possible to order the loom unwrapped?
No, but anything thats wrapped can be unwrapped with some DIY.
Is there any way of using the obd2 interface?
No.
Does vems work with can-bus displays etc?
No.
And is there any "left over" i/o's for controlling various pumps/fans etc?
Does the vems unit support speedometer etc?
Depending on your ecu specs, there should be enough i/o to control all your ancillaries even on M54, wheelspeed input is standard on the ecu.
Would any of the factory electrics be needed? Except "engine mounted" electronics.
For running the engine only, no (apart from fuel pump).
I hope this clears things up for you, if you have any further questions feel free to ask.
Best regards, Dave