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Old 10-29-2012, 10:09 PM
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ztom ztom is offline
I gotta have more cowbell
Location: Thousand Oaks CA
Join Date: Sep 2007
Posts: 892
Mein Auto: 1997 528i
Originally Posted by putitupmike View Post
Error code says that both front banks are running lean. What is the first thing I should do?
There's no "both front". If just one bank then maybe not vac leak. If both then still maybe not vac, could be maf needs crc cleaner. Also check fuel trims real time, see if lean at say 3k rpm, if so then maybe not vac but fuel flow.
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