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      02-11-2018, 11:06 PM   #1
eyehategod
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Drives: 2012 335i Xdrive (E92)
Join Date: Jan 2018
Location: Washington D.C.

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Need help after changing spark plugs

Hi all,

Just DIY changed my spark plugs for the first time. I was getting a rough idle beforehand and thought this would fix it, but I may have screwed something up. I just got a pretty hard misfire after finishing the process, so I connected to Carly and got these two errors:

Air mass meter, signal: electrical fault
Code: 00277A

Intake air temperature, electrical: short circuit to positive
Code: 0029D0

This is on an E92 N55. Any help would be really appreciated!