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2001 blazer O2 sensor


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launst
Anonymous Poster
krislaunstein@hotmail.com

Jan 31, 2007, 2:47 PM

Post #1 of 4 (2854 views)
2001 blazer O2 sensor Sign In

I just bought an 02 sensor for a 2001 blazer after getting the code for a Bank 1 Sensor 2 malfunction. Now I just need to know which one I need to replace


Guest
Anonymous Poster

Jan 31, 2007, 5:36 PM

Post #2 of 4 (2844 views)
Re: 2001 blazer O2 sensor Sign In

Being bank 1 sensor 2. I would say since the #1 cyclinder is on the drivers side of the truck that bank 1 would be the same side. Sensor #2 would be the second one back from the engine on that side.
I'm not sure but the connectors could be differant for each location.


launst
Anonymous Poster

Jan 31, 2007, 5:52 PM

Post #3 of 4 (2842 views)
Re: 2001 blazer O2 sensor Sign In

I'm having a hell of a time finding which sensor to replace. I've only located 3 of the 4. I can't find a second one on the driver's side


Guest
Anonymous Poster

Jan 31, 2007, 8:37 PM

Post #4 of 4 (2841 views)
Re: 2001 blazer O2 sensor Sign In

It's possilbe that it only has 3 sensors. You should have a sensor on each side before the catalaitc converter. This will account for 2 sensors. Is the 3rd sensor before or after the Y-pipe?






 
 
 






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