Well I replaced them both so I'm not too woried about replacing the wrong one, what do you mean by crossed signal/signal wires? Cuz when I put the sensor on the wires inside the insulation kinda wrapped around each other, I don't think that'd cause a fuss but it wouldn't be the first time I was wrong. But as far as the water and contamination go they're fine. So lemme know if that's what you mean, I hope it's not.. I really really don't wanna have to do that again, my hands still hurt from squeezin in there. Thanks for the help.