Thanks again everyone for the advice on the Bentley manual.
Right now, on my 1990 525i, the idle hunts between roughly 1300 and
700 RPM, and I also have a gas smell coming from the engine at idle.
Any suggestions on what I might be looking for? From previous
newsgroup discussions that I searched, I'm guessing the there might be
a vacuum leak at the throttle intake boot, but I haven't taken my car
repair into my own hands in about a decade, so any other
recommendations are welcome. Thanks!