Mechanics

BMW 740 SENSOR PROBLEM

1997 BMW 740

Heater problem
1997 BMW 740 V8 Automatic 148 miles

HI I wanna no where O2 Sensor Heater Control Circuit (Bank 1 Sensor 2), (Bank 2 Sencer 2 is locacted. Thanks For your hepl
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Gatti23
July 21, 2008.



Either it will need the post cat o2 sensors replaced, or it will just take clearing the faults and driving the car for several drive cycles to remedy this issue. There may be other issues involved. What method was used to extract the faults?

Dr. Hagerty
Jul 21, 2008.