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2003 BMW 325i

 

Question: when i start up cold runs rough about 3 min,,dig code says bank 1 and 2 lean

Question

mtgarrett9465, Dodge City, KS, October 26, 2012, 13:56
 Rookie

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

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  • Answer #1

    Herb Ackside October 27, 2012, 08:51
     Journeyman

    Have your heated oxygen sensors and coolant temp sensors tested. They may be lazy or malfuntioning causing the lean condition cold.

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    mtgarrett9465, October 27, 2012, 09:32
     Rookie

    Thanks I will have it checked

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