What is wrong with my car?

Ok so I drive a five speed 2002 Honda Civic lx. I was driving it one day and I couldn t get over 20 mph without the rpms shooting yo way high. So I pulled over and opened the hood and there was this little rubber housing, smaller than an apple. That had smoke coming from it and it smelled burnt and bad. There's some sort of metal part in the rubber housing but I'm not a car guy so i don't know what it is. Anyway, its lower to the ground and closer to the front, and it's across from this fan that s behind the front bumper. I can't for the life of me figure out what's wrong. There aren t any noises when I drive, I just have to feather the gas in a low gear or my rpms shoot up like crazy. I can't even drive it anymore. I jammed my finger in the rubber housing and it came out smelling like it did when o pulled over and there was smoke, and my finger was all black. Please help me.

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