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

Asked by for the 2003 BMW 325i
1 answer 1 comment
Have your heated oxygen sensors and coolant temp sensors tested. They may be lazy or malfuntioning causing the lean condition cold.
Thanks I will have it checked