2001 BMW 325 Engine code

2001 BMW 325
144,000 MILES • 6 CYL • 2WD • AUTOMATIC
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MARYAUTOSALE
  • MEMBER
  • 2 POSTS
What is causing this code oxcb (203) lambda control limit bank 2
Jan 29, 2009 at 2:28 PM
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DOCHAGERTY
  • CERTIFIED EXPERT
  • 9,603 POSTS
It is possible the code is set for an oxygen sensor that is getting old and is slowing down in it's response time. The sensors are to be replaced as maintenance items at 100k miles, they should have been replaced and if so with the OEM Bosch sensor.
Jan 29, 2009 at 4:01 PM