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Need Help for Code - 17521 P1113 B1-S1

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Old 09-05-2008, 12:08 AM
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Default Need Help for Code - 17521 P1113 B1-S1
What is this code stand for?? I presume it is related to the front 02 sensor since my AR is about 7 years old.... However, my mechanic said, it should be the Cat consisted of too much carbon which needs to install a new one at both pipes??
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Old 09-05-2008, 06:17 AM
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First off Sensor 1 is precat, so nothing to do with cats.
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Old 09-05-2008, 06:28 PM
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Default Re: Thanks for your advice.
However, with a 7 years old car... I'm wondering if it is time to change all 02 sensor to exchange for better fuel consumption??
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Old 09-06-2008, 07:16 PM
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Default I threw this exact code today as well
searching now....
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Old 09-08-2008, 06:15 PM
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Default Not a bad idea, O2's get lazy and off scale after a few years, or about
80,000 miles
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