when i start up cold runs rough about 3 min,,dig code says bank 1 and 2 lean on 2003 BMW 325i

what is causing problem?,,the rest of the day runs great

by in Dodge City, KS on October 26, 2012
1 answer 1 comment
ANSWER by on October 27, 2012
Have your heated oxygen sensors and coolant temp sensors tested. They may be lazy or malfuntioning causing the lean condition cold.
COMMENT by on October 27, 2012
Thanks I will have it checked

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