Thread: Where's B1S1

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  1. #1 Where's B1S1 
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    2000 Grand Prix, 3.1, where is bank 1 sensor 1?
    Thanks.
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  2. #2 Re: Where's B1S1 
    DUI BABY Bio248's Avatar
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    bank 1 sensor 1 is the only one in the engine bay. the other o2 sensor is after the cat.
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  3. #3 Re: Where's B1S1 
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    yeah but where?
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  4. #4 Re: Where's B1S1 
    Donating Users BoostnBlackGTP's Avatar
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    its in the rear exhaust manifold. just look and u will see it. right by your downpipe
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  5. #5 Re: Where's B1S1 
    DUI BABY Bio248's Avatar
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    probably in the rear manifold. pretty sure its in the same spot as the 3.8s.
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  6. #6 Re: Where's B1S1 
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    Accessible from the engine bay, or underneath?
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  7. #7 Re: Where's B1S1 
     

  8. #8 Re: Where's B1S1 
    The Blue One blueguy's Avatar
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    Pretty sure the 3100's have them in the DP...I don't think they are in the manifolds since they are way less tubular than the 3800's when it comes to manifolds.
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  9. #9 Re: Where's B1S1 
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    I can't get that thing out. I have the socket but it's a pain to reach. What's the trick? Mine is the socket with the tab on it with the half inch square for the ratchet. I'm almost thinking I'll take the alternator off. I sprayed it with PB blaster. Any suggestions would be appreciated. Thanks.
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  10. #10 Re: Where's B1S1 
    GTP Level Member 01gpgt01's Avatar
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    Heat it up with a torch
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  11. #11 Re: Where's B1S1 
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    Cant reach in there with a torch.
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  12. #12 Re: Where's B1S1 
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    I am thinking if i get a different socket, I can get a better grip on it.
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