ok lets ask a real dumb questions and go trough this one bit at a time and may i ask was it s/h, self built or pre built?
1. does your ecu all work ok on a stim? with a vr input running does your ecu get rpm's, sync and work ok if it dont its not going to work on a car! (recheck it)
also have a look at the tooth logger in tuner studio
2. on a ms v3 pcb there are 2 pots to ajust the vr circuit there is a bit in the build manual to pre set them before making running ajustments this may get it going on a stim or on the car
3. what restince do you get between the two signel pins of your pick up (not cranking)
4. with the vr sensor conected directly to a multimeater in V AC what voltage do you get (whip the plugs out to get it spinning better)
do thease bits and we can go from there
