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p0131, p0137, p0151, p0157

This is a discussion on p0131, p0137, p0151, p0157 within the General Help forums, part of the LSx Technical Help Section category; So when i get on my car real hard it will pop the SES light on for a couple hours ...

  1. #1
    Don't Listen to Me NE98LS1's Avatar
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    p0131, p0137, p0151, p0157

    So when i get on my car real hard it will pop the SES light on for a couple hours then go away. So i finally went and pulled the codes today and this is what I got, they are all the 02 sensor bank 1 sensor 1 bank 2 sensor 1, low voltage. do i need to replace my o2s or what am i looking at?

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    Don't Listen to Me NE98LS1's Avatar
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    so i just found this thread

    P0131, P0137, P0151, and P0157

    and it sounds like a very similar circumstance. should i just go ahead and pick a fuel pressure regulator up and try this, or would replacing the o2s be the first step?

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    King 0f n00bz shady milkman's Avatar
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    do you have longtubes ?

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    Senior Member Too Fast's Avatar
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    I'd check the fuel pressure first, before anything else. Especially if it is somewhat sluggish.

  5. #5
    Don't Listen to Me NE98LS1's Avatar
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    no i don't have long tubes, just a K&N and flowmasters, basically stock

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    King 0f n00bz shady milkman's Avatar
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    Quote Originally Posted by Too Fast View Post
    I'd check the fuel pressure first, before anything else. Especially if it is somewhat sluggish.
    i was thinking lazy 02s if he was running longtubes..since its very common with longtubes...that or a leak somewhere ..but FP is a good first diagnostic

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    Senior Member Too Fast's Avatar
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    ^^^ yeah that does make some sense. It always makes me wonder why I've never had any problems since I installed my LTs except the SES light is always on. I must be one of the lucky ones, Too Fast runs great and MPG is up.

  8. #8
    King 0f n00bz shady milkman's Avatar
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    Quote Originally Posted by Too Fast View Post
    ^^^ yeah that does make some sense. It always makes me wonder why I've never had any problems since I installed my LTs except the SES light is always on. I must be one of the lucky ones, Too Fast runs great and MPG is up.
    i have a lazy o2 right now after my header install...it might be related to a possible exhaust leak tho (QTP headers)

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    Don't Listen to Me NE98LS1's Avatar
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    pretty sure got it figured out. the MAF was dirty and there was something wrong with the ECU program that wasn't giving it enough fuel at WOT causing it to run lean. car is running better than it ever has and no SES!!!

  10. #10
    King 0f n00bz shady milkman's Avatar
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    Quote Originally Posted by NE98LS1 View Post
    pretty sure got it figured out. the MAF was dirty and there was something wrong with the ECU program that wasn't giving it enough fuel at WOT causing it to run lean. car is running better than it ever has and no SES!!!
    congrads

  11. #11
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    hello i just had all these codes pop up and they were just replaced does anyone think the fuel reg could be messed up on mine as well??

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