I take it it's an omex 600 ?

You need the tuning software on a laptop and connect the lap top to the ecu. The last two I did both needed a serial adapted and these being Chinese can be very hit and miss on if they work or not.

Once powered up you will see the base map and all the engine sensors. You can set the tps and you will see the engine cranking with a tachometer signal.


The two options for crank sensor you commented on are Vr and hall affect.
The zetec uses the Vr sensor they are polarity sensitive.