I havent tried the probing yet, but I have a feeling that everything seems to be aligned because when I replace the sensor it works perfectly for a time.
Also it seems that if I take the sensor off now it has actually gone bad already, I think that I would still be getting 0-5 voltages because the speedo is still giving me a reading, just not a correct one...
Ill post again when I try the probing, Any other suggesting in the mean time?