revs

ive got a g reg mk1 cab gti 1.8 and the revs stay at 2000rpm all the time wont drop down any ideas anyone
Cheers ben

Idle speed screw - located on back of throttle body, (awkward to get to by the bulkhead). I think its a 7mm nut, I bought a 3/8" socket with a knurled base and I can use this to turn it by hand. If its not this, then start looking elsewhere, for example on these models there's an idle boost valve, and it could also be a vacuum leak, some of the pipework is behind the inlet manifold and awkward to inspect. Or could be AAV stuck open.

7mm nut

tried the 7mm bolt on the back thats screwed in all the way if i unscrew it the revs just go even higher. look for a vaccum leak carnt see any. whats the avv and where is the boost valve.
cheers ben

AAV is behind the inlet manifold. Idle boost valve is bolted to the suspension turret, if fitted. I think you've missed a couple of vac pipes to check, since some are connected to the AAV and idle boost valve.

took the pipe off from the idle boost and the revs have dropped down to just over 1000 any ideas

When you say "took it off", did you then block both ends of it (there's 2 pipes to the idle boost valve, if you remove one and the valve is open then you're going to have another pipe open).