Yep, we tested intake with smoke. There was a leak underneath intake manifold and found brake booster vacuum hose broken, changed it. Installed intake manifold with new gasket also, but did not help on the problem. It starting to look like new hella maf isn't working properly.

But gotta smoke test it once more today.

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Current rides: E65 730d, F10 520d, E34 520i


BMW glasses on since 2004.