It's been on for a few weeks now. It'll come on for a few days, go off for a day or so, come back, etc. I broke out my trusty code reader and it gave me some weird P01 80/$80 but said fuel temp sensor a circuit.

From what I've seen on Google (mostly on other Benz models) it's either the sensor itself, or just a dirty connection. I looked for a fuel temp sensor on FCP Euro where I get all my Benz parts and it didn't have anything. What is the proper name for the sensor that I need?