is the volvo hall sensor hi to low, or low to hi...

[Rockmonton]

thats about it...

[chenz]

My hall is low to high. but it's not the original one that came with the car. But I've had the car running fine the other way around. I just had to adjust the trigger offset to compensate.
From what I remember Low to High, the signal wire is live when the metal tab passes through the hall sensor and vise versa.