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SES help please

This is a discussion on SES help please within the General Help forums, part of the LSx Technical Help Section category; So i took a stroll through the mountains today and SES light kicked on, so i stopped at my shop ...

  1. #1
    Member zeetwentyeight's Avatar
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    SES help please

    So i took a stroll through the mountains today and SES light kicked on, so i stopped at my shop and picked up a code reader and here is what i got:
    p0131 o2 circuit low volts bank 1 sensor 1.
    What do i need to do replace o2 sensor?

  2. #2
    Member TA98's Avatar
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    most likely unless you have o2 extensions,cuz they can sometimes go bad

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    Member zeetwentyeight's Avatar
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    Quote Originally Posted by T/A98 View Post
    most likely unless you have o2 extensions,cuz they can sometimes go bad

    Is bank 1 sensor 1 a front or rear plug? if it is im doing LT's this winter.
    Would it be bad to drive on as well

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    That guy thearborbarber's Avatar
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    Drive's side front sensor. You can wait but you'll need a new one sooner or later.

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    Member zeetwentyeight's Avatar
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    Quote Originally Posted by thearborbarber View Post
    Drive's side front sensor. You can wait but you'll need a new one sooner or later.
    So its not gonna hurt anything to wait a couple weeks?

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    TerribleTed TerribleTed's Avatar
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    It can wait,.....and it may not be a bad sensor,,,I would remove it,,,check the end of it,,,then check out the connector pins/receptacle and befire sticking it back in fill connector up with dieletric grease,,,

    I had a few front end os sensor codes happen,,and al I did was remove them,,clean..replace them with diectric grease and have not had a failure on front end sensors for years...

    NOW after install of my LM exhaust,,,I have a lazy post cat os sensor,,and its not the sensor,,,its just the way it goes when you change something,,something else can pick up on it ot alter things a abit.,

    Its time for a dyno and code delete of all POST CAT codes,,,

  7. #7
    old timer blue02Z's Avatar
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    Your mpg's will be affected because that is an afr sensor. But like mentioned above, drivers side sensor before the cat

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    Member zeetwentyeight's Avatar
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    Quote Originally Posted by blue02Z View Post
    Your mpg's will be affected because that is an afr sensor. But like mentioned above, drivers side sensor before the cat
    yea i noticed on my last tank i only got about 150 miles on it

  9. #9
    try switching the front o2s with one another. Then plug in the obd and see if the code follows to the opposite bank. If it does then replace the o2.

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    expensive tires az gt eater's Avatar
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    Quote Originally Posted by senicalj4579 View Post
    try switching the front o2s with one another. Then plug in the obd and see if the code follows to the opposite bank. If it does then replace the o2.
    that is an excellent idea

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    Member zeetwentyeight's Avatar
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    in the middle of doing that now but i cannot get the front o2 sensor i have tried heating up with a torch as well

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    Member TA98's Avatar
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    PB Blaster and let it sit over night. When you put them back in make sure you put a small amount of anti-seize on the threads so theyre easier to remove next time

  13. #13
    Member zeetwentyeight's Avatar
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    well got it out but completely stripped the o2 sensor as well as the manifold, if i can sell my fourwheeler soon im just gonna do some LT's

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    Member TA98's Avatar
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    If you didn't live in Utah I'd be interested. I'm trying to sell my 250f bike to buy a 450 quad.

  15. #15
    fuck how did you do that. Out of all the times iv taken o2s out (and im on my 3rd ls1) iv never striped them out. Can you still swap them and see if the code follows to the opposite side?

  16. #16
    Member zeetwentyeight's Avatar
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    Quote Originally Posted by senicalj4579 View Post
    fuck how did you do that. Out of all the times iv taken o2s out (and im on my 3rd ls1) iv never striped them out. Can you still swap them and see if the code follows to the opposite side?
    I can't even get a new one in, I'm going to try tapping the manifold doon

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