Can anyone tell me what these are for (2.1 DJ WBX)

[sonic23]

I've found some loose connections in the engine bay. It's a 2.1 DJ, that's had an LPG.
The below picture shows a connector with a brown and black wire that was just hanging lose. Anyone knoe what this is for?

Also, in the same picture is what I think is a fuel filter (got the white arrow painted on it). It's certainly connected on the fuel return pipe. Whatcha reckon?





Next up are the 2 pipes in my hand. One is plugged, the other isn't. Anyone have any ideas what's going on here?




cheers,
Rich

[Diamond Hell]

Second picture, the one on your right is the bellhousing breather, on the left is part of the coolant bleeding rail thingie, should go to the thermostat.

[Aidan]

the fuel filter thing is probably one of those magic devices for better running on unleaded - supposedly ok for 20-40k miles, but if it looks hanging I'd remove it.
The two pin plug is probably the oil breather pipe heater element connector. 1 inch rubber hose connects breather tower and 3inch corrugated rubber connecting pipe from afm to throttle body. Should be a connector on the pipes with electrical plug fitting to match the plug.

[sonic23]

thanks Aidan and Thomas (and Sam)