On my f10bt I am yet to get to vss wire hooked up (awaiting canbus adapter). I have noticed that the road angle is always flat on the 3d calibration screen. Is this Reading derived from the other sensors and hence without the speedpulse cannot do it, or is there a fault with the sensor?
Rob
I have the Z110BT and the angle sensor worked for me even before the VSS wire was hooked up. In my car though it shows me going up hill a lot of the time while on a flat surface, but not always. The VSS shouldn't affect the angle, that is calculated by the gyro sensor in the unit.
I can confirm that in a parking garage the VSS wire/3D calibration on the Z indeed does make a difference as VBLUE42 has stated, but I have no experience with any other unit as this is my first.