Stupid 02 Sensor Question :X

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08-14-2012, 08:26 AM

mkulrey13

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Stupid 02 Sensor Question :X

I need to replace my upstream 02 Sensor. Is there a certain sensor or are both 02 sensors the same? Part number?

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08-14-2012, 08:27 AM

68nova200

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i cant remember the part number but they are different, and i think they are different across the model range.

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08-14-2012, 08:42 AM

mkulrey13

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Well im a 2009 Cobalt SS (LNF). Ill poke around.

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08-14-2012, 08:45 AM

68nova200

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I ordered mine from Rock auto. They have a pretty good menu system for part selection.

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08-14-2012, 04:28 PM

Aleksey

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I got quoted $90 for rear o2 sensor, it's a bitch and throwing two codes 0036 and 0037, doesn't affect performance just annoying ungodly yellow light on the dash. They are both indeed different sensors.

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08-15-2012, 09:16 AM

Gelladuga69

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Upstream and Downstream are two different sensors.
Just go to your local auto store and either grab an AC Delco or NGK direct replacement.

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08-15-2012, 09:21 AM

mkulrey13

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I rather not pay the 100$ price lol. Figured someone would know from here. I PMed Tom @ CED yesterday but no response yet

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08-15-2012, 02:12 PM

Aleksey

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Don't think there's a way around it, unless you get it used

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08-15-2012, 03:12 PM

mkulrey13

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I have my connections lol STILL no one has a part number...

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08-15-2012, 05:46 PM

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cmiller8006

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Part number is 12589380

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08-16-2012, 08:33 AM

#11

mkulrey13

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Thanks miller! that is for the rear correct?

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08-18-2012, 12:05 AM

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cmiller8006

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No you said upstream. Isnt that the top one?

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08-18-2012, 12:09 AM

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Aleksey

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I don't know what he means by upstream lol exhaust travels downstream from engine to the tip :-p but I think he wants the rear.

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08-18-2012, 12:36 AM

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abomb5501

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Upstream is pre-cat and what the ecu uses to read afr, downstream is after cat and just reads cat efficiency Sp? The op said upstream in 1st post, it will prob be expensive as lnf's have wideband