Installing my snorkel today I took out the thing that looks like a pee bottle under the ABS box... I unplugged 2 cables that are white with one multicolored one. They look like a single white wire, one has a white band on them. What are these and which one goes where?

I plugged them back in like I thought they came off, but my check engine light is on.

Why can't they just have key'd plugs #%@$%%@#$!!!