similar issue here lads, just struggles at idle. also on start up warm or cold it sometimes revs high 1600rpm ish. sometimes absolutely fine, never stalls but comes close to it.
ive done preety much everythng to resolve it but with no joy,
parts i have changed, throttle body (recon), temp sensor, crankshaft sensor, full service, all the usual relays,coilpack,dizzy, airmass sensor, bla bla bla the list goes on! to much to list! i didnt just change these bits due to the idle issue but down to poor running. had it plugged into vag-com various times with no errors popping up!
it runs sweet as a nut now, pulls well, good mpg but still idles all over the place. given up to be honest, would like to sort it but no idea how! only ever issue i see it causing is if i go to sell her at some point!