o2 sensor codes, to buy or not to buy - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)

stride007 · 12-13-2012, 08:52 AM

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

Stohlen · 12-13-2012, 09:34 AM

I would test the O2 sensors with a multimeter.

stride007 · 12-13-2012, 09:59 AM

any particular way to test?

Stohlen · 12-13-2012, 11:42 AM

unplug, test their resistance with the car off, and with the car running. Report to us with your findings.

stride007 · 12-13-2012, 03:18 PM

Will post results. What do you think the issue could be?

JimD · 12-13-2012, 08:27 PM

O2 sensors go bad. When you can get to them, the only issue is breaking them loose. Corrosion can make it difficult.

12-13-2012, 08:52 AM	#1
stride007 New Member Drives: B6 Join Date: Jul 2012 Location: NJ Posts: 20 iTrader: (0)	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, 08:27 PM	#6
JimD Colonel Drives: 128i convertible Join Date: Apr 2009 Location: Lexington, SC Posts: 2,156 iTrader: (0)	O2 sensors go bad. When you can get to them, the only issue is breaking them loose. Corrosion can make it difficult. __________________ 128i Convertible, MT, Alpine White, Black Top, Taupe Leatherette, Walnut, Sport Ordered 5/22/09, Completed 6/4/09, At Port 6/9/09, On the Georgia Highway 6/13/09, Ship Arrived Charleston 6/24/09 at 10pm, PCD 7/21/09

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12-13-2012, 09:34 AM	#2
Stohlen Lieutenant Drives: AW 135i Join Date: Aug 2012 Location: Waterford, Mi Posts: 532 iTrader: (1) Garage List 2008 BMW 135i [5.00]	I would test the O2 sensors with a multimeter.

12-13-2012, 09:59 AM	#3
stride007 New Member Drives: B6 Join Date: Jul 2012 Location: NJ Posts: 20 iTrader: (0)	any particular way to test?

12-13-2012, 11:42 AM	#4
Stohlen Lieutenant Drives: AW 135i Join Date: Aug 2012 Location: Waterford, Mi Posts: 532 iTrader: (1) Garage List 2008 BMW 135i [5.00]	unplug, test their resistance with the car off, and with the car running. Report to us with your findings.

12-13-2012, 03:18 PM	#5
stride007 New Member Drives: B6 Join Date: Jul 2012 Location: NJ Posts: 20 iTrader: (0)	Will post results. What do you think the issue could be?