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code p1133 after cutout install

This is a discussion on code p1133 after cutout install within the General Help forums, part of the LSx Technical Help Section category; Like it says after electric cutout install getting p1133. bank1 sensor 1 insuff. switching... fairly common? anybody gotten this after ...

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    Senior Member TransAm11973's Avatar
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    code p1133 after cutout install

    Like it says after electric cutout install getting p1133. bank1 sensor 1 insuff. switching... fairly common? anybody gotten this after a cutout install? Didnt do it the first day i drove it but it was warmer. Today was like 40, colder, wonder if that was adding to it? Thanks for the input fellas.

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    Senior Member TransAm11973's Avatar
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    also wondering if the rtv sealant is causing it

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    Spaz is My Mentor SMWS6TA's Avatar
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    How far away is the cutout form the O2 sensor?

    When was the last time you changed the O2's?


    Most likely if your e-cut out is not within a foot of the O2 sensor then code is just coincidence.

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    O U 8 1 2 Spaz's Avatar
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    Quote Originally Posted by TransAm11973 View Post
    also wondering if the rtv sealant is causing it
    this is a common problem during the welding of the EC shit gets all over the 02's and makes them pop up codes...

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    Veteran 0rion's Avatar
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    are you running headers? Switching and heater codes usually follow header installs. I solved my issues by switching to bosch 13111 sensors.

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    O U 8 1 2 Spaz's Avatar
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    any updates???

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    Spaz is My Mentor SMWS6TA's Avatar
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    One more thing that could have happen while welding.

    If the O2's were not disconnected while he welded the cut out on it could have caused a short to the wire harness. Not likely but still possible.

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    Senior Member TransAm11973's Avatar
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    yea well i think the welding had something to do with it. I just find it strange that both went as soon as i had the cutout installed. anyway besides insuff. switching i eventually got heater circuit malfunction so i just decided to replace them with bosch o2s. Installed them last night. Going to be nice tomorrow and around 60 so i will take it out and we will see. Hope its just the o2s.

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    Spaz is My Mentor SMWS6TA's Avatar
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    disconnect the battery for 20-30 mins so the codes clear, otherwise the PCM will still run the same (rough) till the codes clear

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    Senior Member TransAm11973's Avatar
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    Quote Originally Posted by SMWS6TA View Post
    disconnect the battery for 20-30 mins so the codes clear, otherwise the PCM will still run the same (rough) till the codes clear
    I have a scanner so I was able to see mV and clear the codes. Ran the car today for a while. went through a few ignition cycles no codes and is running smoother. o2s were just shot, still think the welding had something to do with it. Oh well it runs like a champ now.

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    Smiles for 9.5 Years cammed goat's Avatar
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    Good. Hopefully the issue is gone.


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