Well do you want to fix the crank sensor of replace it, I really dont think you ca fix tit and it will last, you are going to have to replace the whole thing. THe sensor it self is fairly easy to replace, all you need is an Allen wrench and to guid it into the where it plugs in. This is a common problem amongst crank sensors, mine I have replace twice due to fan belts. I have tied the last one down with plastic ties.