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Old 04-30-2013, 07:27 PM   #1
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Exclamation Check Engine Light Help

On my way home I got a check engine light, so I stopped by AutoZone to get the code checked. It came up with P1153-heated oxygen sensor Bank 2 sensor 1 (H02S21) insufficient switching.
To me that means the 02 sensor may be going bad??? Any ideas what may be going on? I have long tubes with high flow cats so I have the extended cords for the sensors. Any help would be appreciated. Thanks
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Old 04-30-2013, 07:46 PM   #2
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Typical of HFC's or no cats and headers. Reset the code and add O2 extenders or disable the codes in the tune.
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Old 04-30-2013, 08:06 PM   #3
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I have the extenders on already. I haven't had problems in a year. I will reset it and see if it comes back. Thanks
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Old 04-30-2013, 08:54 PM   #4
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Old 04-30-2013, 09:20 PM   #5
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Thanks
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Old 05-01-2013, 10:49 AM   #6
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My bad, it's the sensor 1 codes you posted. Reading > me. I was thinking the rears.
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Old 05-01-2013, 12:47 PM   #7
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no worries, thanks for the help
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