ebike hall throttle issues

[m3vuv]

Hi all,yesterday my ebike conked out,after a few checks i found no signal from the throttle,on inspection the 5v left leg of the hall sensor had coroded thru,no probs just replace the hall,originaly i would get a varying voltage output from abou.5v to 4.7v from the rh leg of the hall and ground,with the replacement its roughly .5v-2.2v depending on throttle position,if i put a 8k resistor between the lh input leg and the rh output leg,the output is 0v until the throttle gets to a certain point then jumps to 5v,there is no gradual rise as i turn the throttle,its all or nothing,any ideas?,cheers paul m3vuv.

[thm_w]

What was the part number of the original hall sensor and the replacement part?
Sometimes it might make more sense to replace the whole throttle module.

[m3vuv]

i dont know as they were illedgible,the replacement hall wa from an old brushless motor tho.

[thm_w]

There so many different hall sensors types.
I would expect the hall sensor from a brushless motor to be on/off type and not produce an analog output, as is needed with a throttle control.

https://se.rs-online.com/web/generalDisplay.html?id=ideas-and-advice/hall-effect-sensors-guide