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have a peek at the pic on this page see if you know what it is... I know it's a vacuum thingy, but what does it do? how should I figure out how to adjust it?actually I once mistakenly thought it would control the idle speed but it ain't that simple, and she idles a little wobbly (always has)
Basically I'm just trying to get this old girl to idle a bit smoother she is idling at 800 rpm, which is the recommended speed new plugs, new leads, air filter ok
it's a 1985 520i L-Jetronic E28 FUEL INJECTED
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