I have a 91 Camry 3SFE engine and i really want to know what this cream looking things is in my oil cap?

The first picture is the A/C idle-up actuator - it should have a big vacuum line on the bottom attached to is and the two smaller ones at the top attached to a solenoid on the firewall. The screw on the front of it adjusts how much the idle goes up when the A/C goes on. (the solenoid lets vacuum go to the thing on the manifold which lets more air go to the engine)What is this thing on the Intake Manifold? Because i found it disconnected.
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And... I know that water sometimes splashes out the muffler, but why is mine kind of brown and black? Does this mean anything?
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ahahaha:lol:maybe someone jizzed all over your oil cap while you weren't lookin
.