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 When do you need to change 02 sensors on LT1

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roadmasterBlue



Posts : 12
Join date : 2013-06-07

When do you need to change 02 sensors on LT1 Empty
PostSubject: When do you need to change 02 sensors on LT1   When do you need to change 02 sensors on LT1 Icon_minitimeTue Jun 11, 2013 9:28 pm

Just saw what looks like a good deal on amazon for o2 sensors (27$ - AC delco) . Wondering when they need to be replaced. Engine is running fine, but 85k, maybe it's something I should consider. Possibly improve fuel economy?

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sherlock9c1



Posts : 2130
Join date : 2009-05-28
Location : Huntsville, AL

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PostSubject: Re: When do you need to change 02 sensors on LT1   When do you need to change 02 sensors on LT1 Icon_minitimeTue Jun 11, 2013 10:59 pm

Those things are always $27-29 on amazon. Change your O2s when they swing slowly; get a scan tool or a data logger (or find someone who does) and let that be your guide.
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gmtech

gmtech

Posts : 224
Join date : 2012-03-21
Location : Tornado Alley Oklahoma

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PostSubject: Re: When do you need to change 02 sensors on LT1   When do you need to change 02 sensors on LT1 Icon_minitimeTue Jun 11, 2013 11:31 pm

Typical range on the O2 sensor should is between 50 to 950mV, O2 sensors degrade over time and can report biased or bad information. At 2000 RPM look for about 5 crossovers per second, a regular scan tool may not pick up this because it gathers too much information at one time and updates slowly. For less than $30 each, I would install new ones, but that is just me.
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toomanytoyz

toomanytoyz

Posts : 3233
Join date : 2008-11-04
Age : 43
Location : Sandown, NH USA

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PostSubject: Re: When do you need to change 02 sensors on LT1   When do you need to change 02 sensors on LT1 Icon_minitimeWed Jun 12, 2013 9:07 am

You'll need a red wrench, more than likely.
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When do you need to change 02 sensors on LT1 Empty
PostSubject: Re: When do you need to change 02 sensors on LT1   When do you need to change 02 sensors on LT1 Icon_minitime

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