1-
Pictuer one shows the disconnected 2pin ISCV plug that should be on the intake pipe that ran across the front of the engine.
To the right of that is the 4 pin plug for the fan switch.
Picture two, is this near the battery as that would be the diagnostic socket.
Fan should be on a 2 pin oval connector with thick wires.
2-
If it's not on the engine loom then don't worry about it.
3-
Never seen one on a UK sierra (is it ford marked ) but it's may be a carbon canister for the emissions system. Does it have any other outlet or control valve
|