1: O2 sensor. Look for small gauge wire from O2 sensor on downpipe.
2: Probably fuel vapor hose, look behind AFM for beige plastic thing.
3: Goes to 4, I think. This device on the AFM is the A/C fast idle valve. Vacuum in from between AFM and throttle body, out to intake manifold.
4: See 3.
5: Looks like coolant hose, goes to expansion tank.
6: Goes to tee on end of intake manifold.
Hope this helps.
Gregory Smith

'87 Bertone X1/9 Corsa
'88 VW Vanagon
Olympia, Washington, USA
http://gregoryfsmith.com>