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      12-03-2012, 02:39 PM   #4
Lieutenant Colonel

Drives: 09 335i X-Drive Black Sapphire
Join Date: Mar 2010
Location: Pittsburgh

Posts: 1,904
iTrader: (0)

Ya, you have to log to see whats going on with boost.

1.) Leaky valve cover causing oil to cake the plugs and having you misfire at wot and high boost.

2.) Check to see if it happens on stock boost also

3.) Check to see if the limp is from underboost condition and not a misfire.