I've got an annoying problem with my old 88 Passat (B3, 1.8L, Sedan), we changed the timing belt and ever since it's idling at about 2100 rpms.
It seems to climb from lower rpms when cold and when hot stays at 2100 - otherwise everything else seems normal.
I've changed the spark plugs, ignitation cap, rotor and cables, oil, oil air and fuel filter (about time to do it anyway) and left the battery off for a full night to reset the computer - still no result...
There are threads here and on VWVortex but they all seem to be about more modern (and computerized) models.
Any ideas what to check/change next?
Khay.