I had no end of trouble trying to use a hall effect sensor with wild, unstable and erratic readings. I moved the sensor all over the place.
No joy.
And then I decided to use the original sensor in the diff and it was perfect straight away. Just remember there are nine vanes on the sender so 1 wheel revolution equals 9 counts.
Stable as a rock, right from the word go!!
Worth a try...............??
Nigel
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