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Old 09-02-2012, 12:09 PM   #16
OEM ///Member
Join Date: Nov 2009
Location: Fairfax, VA USA
Posts: 23,025
My Ride: 330CiC, M5, X5, E93
Check fuses first, many of the O2 heater circuits have individual fuses.

If the heaters have individual fuses, you may be able to just pull a fuse to narrow down which O2 sensor is which?
Solve your misfires, lean codes, rough idle -

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Temp Info -

Hidden OBC Menu - Check Voltage, Temp, Fuel Level -

E46/E39 GM5 Door Lock Info -

Lower hose temp switch O-ring - BMW #13621743299
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