I could be wrong, probably am, but that doesn't look like a fresh break.. it may have been cracked for a while.. fixing it is beyond me but thanks for the picture and it may help...
That looks like no pick-up tube I've ever seen.. looks like a pipe plug. In any case hold the large fitting with an open end wrench and then remove the small square fitting..
My drive was leaking at the Oring and pumping water into the shift cavity. I never knew it until I took the big plastic cover off the top of the engine and could see it coming out of the lower cable..
You might be able to add or subtract resistance on the sensor by adding a simple resistor somewhere in the circuit. The electronic wizards around here could verify...
