BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

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      12-13-2012, 08:52 AM   #1
stride007
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o2 sensor codes, to buy or not to buy

been in the market for a 135. finally found one and it pulled a check engine the day i was planning on buying..

codes are P3026 & P2243

is this just an o2 sensor issue or is there a underlying cause? would you still buy? car has 66k no warranty all stock
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      12-13-2012, 09:34 AM   #2
Stohlen
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I would test the O2 sensors with a multimeter.
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      12-13-2012, 09:59 AM   #3
stride007
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any particular way to test?
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      12-13-2012, 11:42 AM   #4
Stohlen
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unplug, test their resistance with the car off, and with the car running. Report to us with your findings.
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      12-13-2012, 03:18 PM   #5
stride007
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Will post results. What do you think the issue could be?
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      12-13-2012, 08:27 PM   #6
JimD
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O2 sensors go bad. When you can get to them, the only issue is breaking them loose. Corrosion can make it difficult.
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