irratic idle speed

[ChrisZang]

Hi,

My Box is suffering from the same problems:
Irratic idle speed: revs are somewhere between 700 and 1,500 while in idle and from time to time it also throws in a P1128

So I would like to
a) check for vacuum leaks
b) clean throttle body

HOWEVER,
A) I haven't found any good DYI for e-gas models, are there any out there?
B) Does anyone have a good picture which will help me identify the vacuum hoses?

Thanks