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P0157 Code Help

Discussion in '2nd Gen. Tacomas (2005-2015)' started by TegoTaco, Jul 4, 2020.

  1. Jul 4, 2020 at 12:46 PM
    #1
    TegoTaco

    TegoTaco [OP] Well-Known Member

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    Recently installed the URD SPEC-U Exhaust on my truck, had an exhaust shop do the install. Right off the bat, dash lit up like a Christmas tree. First set of codes it gave me, it detected no sensors. Looked under my truck and they forgot to plug in the sensors and exhaust leaks at the y-pipe. Gave me a P0137 code, bank 1 sensor 2, switched over the sensors and now it’s a P0157, bank 2 sensor 2. There’s no exhaust leak, so it looks like it’s the o2 sensor. The problem is, I don’t know which side is bank 1 or bank 2...stupid I know lol! If the exhaust shop forgot to plug in the sensors and not notice an obvious leak...pretty sure these guys were careless about the sensors.!

    C2B4D39E-9DFF-4DCB-BCD4-BB0030A63E84.jpg
     
  2. Jul 4, 2020 at 1:09 PM
    #2
    TnShooter

    TnShooter Well-Known Member

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    B1 = Passenger Side
    B2 = Driver Side

    S1 = Closest to the exhaust manifold (Front)
    S2 = Farthest from exhaust manifold (Rear)

    I’d be sure they got the sensors in the right place.
    Seeing how they are so close together on you System?

    @Muddinfun can double check me.
     
    PzTank likes this.
  3. Jul 6, 2020 at 9:03 AM
    #3
    TegoTaco

    TegoTaco [OP] Well-Known Member

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    Thanks again!!! Just placed the order and hopefully it gets rid of the check engine light lol. Good news, me and an FX35 were dead even 0-70 lastnight lol! Not bad for an automatic truck on E-rated 33” tires. :D
     
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  4. Jul 9, 2020 at 1:24 PM
    #4
    TegoTaco

    TegoTaco [OP] Well-Known Member

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    Well it looks like the check engine light is gone but I did find a slight leak again. Fuck sakes, going to try and seal it up with Permatex Copper gasket maker.

    should I remove it or do you think I’ll be ok just where the leak is, its facing me anyways. was going to put a good coats.
     
    Last edited: Jul 9, 2020
  5. Jul 9, 2020 at 1:44 PM
    #5
    TegoTaco

    TegoTaco [OP] Well-Known Member

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    Looks like a patch job from the shop and this was after I brought it a 2nd time with new OEM gaskets.

    6493CFC1-6884-48B9-96FD-438EF7089C3C.jpg
     
  6. Jul 9, 2020 at 2:39 PM
    #6
    TnShooter

    TnShooter Well-Known Member

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  7. Jul 9, 2020 at 3:32 PM
    #7
    b_r_o

    b_r_o We need to talk about your flair

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    This exhaust shop doesn't sound like they're very good with exhaust work

    Does URD have a part number for a gasket that they recommend?
     
    TegoTaco [OP] likes this.
  8. Jul 9, 2020 at 3:54 PM
    #8
    TegoTaco

    TegoTaco [OP] Well-Known Member

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    Funny thing is, I went to the dealership, pulled out the diagram and they were both the same part number. I’m thinking of going to a different exhaust shop and getting it fixed if the copper gasket doesn’t work.
     
  9. Jul 9, 2020 at 3:55 PM
    #9
    TegoTaco

    TegoTaco [OP] Well-Known Member

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    I’m not going back, if the copper gasket doesn’t work then I’m going to have to take it in.
     
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  10. Jul 9, 2020 at 4:26 PM
    #10
    TnShooter

    TnShooter Well-Known Member

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    It’s worth a shot. It’s easy enough to do, and doesn’t cost you anything. (Other than copper sealer)
     
  11. Jul 9, 2020 at 11:55 PM
    #11
    TegoTaco

    TegoTaco [OP] Well-Known Member

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    Good news, just drove into work and so far so good! I’m impressed with the copper gasket/sealer.

    Tried to get a good pic of the other side of their work.

    7A830794-E12D-4407-AFCF-B43E56BF3001.jpg C52C547E-555A-421A-87FB-939E019C1EFB.jpg
     
  12. Jul 10, 2020 at 12:41 AM
    #12
    TnShooter

    TnShooter Well-Known Member

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    Excellent news man!
    Yeah, I’m not so sure about the all the excess sealer they used.
    Someone was thinking “more is better”.

    I would have at least wiped the flange off clean at the seams.
    Oh well, at least you got it fixed.
     
  13. Jul 10, 2020 at 12:45 AM
    #13
    TegoTaco

    TegoTaco [OP] Well-Known Member

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    Grinded it with a wheel brush, made sure it was a clean smooth surface. :)
     
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