oxygen sensor

[Peep]

I have a 2006 I5 and I suspect the oxygen sensor is bad. Loss of power, lower gas mileage and have 68K on it now. I'm the original owner.

When I look up oxygen sensor on amazon I get a tone of options. Went I look up on the sponsor gmparthouse.com it shows 4. I'm confused. I thought we only had one, but with some reading it looks like we have a up and down stream. Still does not help me select one on gmparthouse.com or amazon. They call oxygen sensors for the H3 by various names.

Has anyone changed their 2006 H3 I5 oxygen sensor, and with what?:wtf2:

 

[poweraidon]

I think mine is bad too... I have lost of power and my mpg is lower but I have 87k on my truck


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[Ghostbuster]

Get an alpha


Would it throw a code if the oxygen sensor is bad?

 

[Peep]

OK I narrowed it down to a few. All say they are for the 2006 I5 H3 Hummer
And the choices are:
-oxygen sensor Universal with plug two prong
-oxygen sensor Universal with plug 4 prong
-oxygen sensor Universal with 2 wires but 4 wire crimping ends
-oxygen sensor Universal Fitment type
-oxygen sensor Bosch screw type sensor attachment 3 wire
-oxygen sensor Bosch screw type sensor attach 2 wire
-oxygen sensor ACDelco oxygen sensor
-oxygen sensor ACDelco heated oxygen sensor
-oxygen sensor Denso oxygen sensor fuel and air ratio type
-oxygen sensor ACDelco position 1 heated oxygen sensor
-oxygen sensor EvanFisher thread and mount oxygen sensor

Ok I am tired of typing. So far I know I need 2.
Any knowledgeable people please jump in

 

[Best4x4]

For an O2 sensor to be INOP you normally get plenty of fault codes.

 

[Peep]

My code reader is not due in till next month. So I guess I wait. But if I do have OX fault codes, then what?

 

[06 H3]

you would throw a code if you had a bad o2 sensor. On the 06 there are 2. One after the headers and by the first cat and then one after the 2nd cat which is by the t case.

 

[poweraidon]

you would throw a code if you had a bad o2 sensor. On the 06 there are 2. One after the headers and by the first cat and then one after the 2nd cat which is by the t case.

Could a p0455 be causes by a bad o2 sensor?


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[3rdH3]

Not likely. That is an EVAP code.

 

[Best4x4]

I'd stay away from the universal 02 sensors. Get em with the correct plugs already on em PNP.

 

[poweraidon]

Not likely. That is an EVAP code.

Do you know how I can get rid of it? It's been on and off for about 4 months now. I replaced the gas cap (not oem) but it's still there


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[Happy Hummer]

Lol a p0455 as was stated is a evap leak.
P0455
http://www.hummerforums.com/forum/hummer-h3-17/h3-engine-light-po455-evap-help-needed-24205/
http://www.elcovaforums.com/forums/showthread.php?t=41952

chris

P0449
https://sites.google.com/site/happyhummer01/p0449-resources