I removed it before i took it to the dealer to have a look at it.incase there was any foreign material on it,none there.Yes there was still magnetism,and i did put a ohm meter on it got a reading and when i touched a screwdriver on the end of it the reading changed,but i did not know how much resistance it should have.So i re-fitted it and took the bike back to the dealer for warranty and they diagnosed it.Will ask for the old sensor if they havnt thrown it in the bin when i pick it up and measure resistance.