Mechanics

CHECK ENGINE LIGHT ON CODES 227 AND 228

2002 BMW M5

Engine Performance problem
2002 BMW M5 6 cyl Two Wheel Drive Automatic 133000 miles

i have the codes 228 and 227 O2 sensor bank 1 and 2 deviation need help check all data and no codes on there about those code. Where should I start looking?
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Mike.salcido
October 28, 2008.



Mike, can you send the last 7 characters of the vehicle identification number so I know exactly what car we are talking about? Also, what method of code extraction was used?

Dr. Hagerty
Oct 28, 2008.