Yes, my mistake, thanks. 100 other things got in the way of me doing the experiment.

 

I think I misunderstood what you had initially tried here. Earlier when you talked about whether the gearbox speed sensor was doing speedo or not on your car, I thought maybe you'd disconnected it and found that your speedo still worked (despite ABS being nobbled), but odometer now didn't (or something).  

You never touched the gearbox sensor though, right?

 

Both our cars (my 53 plate Polo, her 05 plate Fabia) just have the dummy in place of gearbox sensor, so must use ABS info.

2 hours ago, Pete_Ex-Wino said:

You never touched the gearbox sensor though, right?

 

That's right, I haven't touched the gearbox sensor.