Hi Guys,
Great to back in here again, I find this site amazing & all credit to everybody.

Ive got a GC Series 4 cylinder engine, only done 130,000k's & always serviced.
Yesterday I started it and Idled alittle rough. Ive checked all the leads & plugs.Checked nothings blocking anything.
When I get the revs up around 1500-2000 it purrs along. soon as i stop it idles rough and has never stalled in the process either.
Dont know if a vacuum line has fallen off or something else could be blocked.
Got any ideas??