so far ive had no joy with getting my 1983 1.8 gti running right after changing all electrical items eg, plugs and leads ect im now tackling the fuel side but stil have some issues im in need of help with 1) is i seem to be a vacuum pipe missing (see pic)

. 2) some idiot seems to have wired my fuel pump up to constat live without a relay but im unsure of if its been wired into the fuelpump relay slots or not (see pics).

and i have a plug under the bonnet that doesnt seem to go anywhere so im unsure if its supposed to be usedor not (see pics).

if any could help it would be a grate help as this is my first mk1 gti so im unsure where things are sposed to go
thanks in advance
mr mk2