Re: BMW 520i 2.2 2003 - Missfire but only when frosty # Archived Message
Posted by Alan Kane on February 23, 2009, 1:33 pm, in reply to "BMW 520i 2.2 2003 - Missfire but only when frosty #"
Since it only happens when its very cold could it be a lean running concern? Did you look at fuel trims? One common leak on these is the breather pipe that runs alongside the injector rail.
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