I heard that vacuum leaks after a shim adjustment are quite common. Is this usually just the valve cover gasket not sealing properly?
How can you test for vacuum leaks?
How can you test for vacuum leaks?
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Probably more likely the vacuum lines like the one on top from crankcase seperator to airboxDD: /// 2011.5 Jerez/bamboo E90 M3 · DCT · Slicktop · Instagram
/// 2004 Silvergrey M3 · Coupe · 6spd · Slicktop · zero options
More info: https://nam3forum.com/forums/forum/m...os-supersprint
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