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09-14-2013, 10:46 AM
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#1 |
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Registered User
Join Date: Jul 2011
Location: mexia texas
Posts: 35
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O2 sensor codes
My 5.3 ls swap is now throwing o2 sensor codes, I didn't see the Code number at autozone where they read it, but the guy said Both sensors showing codes for the 02 heater. What are the chances that both sensors went out at same time? The engine and trans had 140,xxx miles on them and the sensors laid around in my toolbox almost a year before I got the truck running. I have about 300 miles on truck since swap and it just started showing the codes.
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