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      10-23-2019, 04:32 PM   #14
exE36M3
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Drives: 2015 435i M Sport
Join Date: Jan 2018
Location: NorCal

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OK silly idea. Intake charge pipe? 'Cause a vacuum leak would definitely cause sputtering and misfires. But would it throw AF ratios off enough to make the ECU think it's a misfire.

FWIW, I replaced my charge pipe at 55k miles. The pipe was OK, but all the stupid plastic fittings/nipples to it/around it were brittle as hell. Given all the plastic under the hood, I can't see how at over 90k that stuff wouldn't start cracking up.
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