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Old 02-06-2019, 11:08 PM   #1
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2012 sil. P0300 P0131 p0137 p0171

I have a 2012 Silverado 1500 LT 5.3 it has a rough idle codes are permanent wont clear with scanner or disconnecting battery.
I change the bank 1 O2 sensors up stream and down steam (yes yes i know what was I thinking) i did have a exhaust leak before the cat Fixed that too think it would fix it but it didnt checked grounds wiring. Cleaned the other o2 sensors PLEASE HELP!
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Old 02-07-2019, 09:40 AM   #2
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Re: 2012 sil. P0300 P0131 p0137 p0171

Welcome to AF. The p0300 misfire is causing a lean exhaust, this can set the 02 codes. Got to track down the misfire issue.
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Old 02-07-2019, 04:34 PM   #3
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Re: 2012 sil. P0300 P0131 p0137 p0171

I switched out the O2 sensors upstream and downstream now i got just got codes p0171 and p1133
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Old 02-07-2019, 05:16 PM   #4
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Re: 2012 sil. P0300 P0131 p0137 p0171

No more rough idle? Check this link. https://autoservicecosts.com/obd2-codes/p1133/
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