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Where to put oxygen sensor on headers?

Discussion in 'The Garage' started by bigburban383, Dec 31, 2003.

  1. bigburban383

    bigburban383 1/2 ton status

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    Should I put it on the collector on the driverside? I dont want to just put it on #7's tube cause it'll screw up the flow. Anybody done this before?

    Thanks /forums/images/graemlins/thumb.gif
     
  2. R72K5

    R72K5 Banned

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    as far as i have ever heard they are supposed to be located after the burn off area of the exhaust, but ive seen stock ones closer to engine than that, so hmm
     
  3. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    it needs to go into the collector. If you are running full length headers then you are most likely going to need a heated 02 sensor
     
  4. bigburban383

    bigburban383 1/2 ton status

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    [ QUOTE ]
    it needs to go into the collector. If you are running full length headers then you are most likely going to need a heated 02 sensor

    [/ QUOTE ]

    Oh that sucks, heated sensors cost a lot from what I remember.
     
  5. 84_Chevy_K10

    84_Chevy_K10 Banned

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    $55 for a Bosch one at Autozone--I"m sure someone has an AC Delco one for $70 or so. I wouldn't use a Bosch.
     
  6. 55Willy

    55Willy 3/4 ton status

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    I looked at my dad 90 and his stock o2 sensor is right at he y pipe. so mine on my wagon is going on the driver or passenger side collector.
     
  7. bigburban383

    bigburban383 1/2 ton status

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    [ QUOTE ]
    I looked at my dad 90 and his stock o2 sensor is right at he y pipe. so mine on my wagon is going on the driver or passenger side collector.

    [/ QUOTE ]

    Whoa wait! Your dads truck runs fine with the sensor where? All the way back at the Y pipe? That must be custom cause my 90 has it right on the manifold close to the engine. If it works GREAT!
     
  8. dyeager535

    dyeager535 1 ton status Premium Member

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    Really need to get a scanner on it after install, to see if it's within the proper ranges. Experiences vary when using an un-heated O2 sensor back at the collectors...some see the vehicle dropping out of closed loop at idl (O2 sensor cools off) and some don't.

    Only way to know for sure is to watch it after install with a scanner.
     
  9. Burt4x4

    Burt4x4 3/4 ton status

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    Does the sensor go into the heder itself or the exahust pipe right after the collector?
     
  10. rick88blaze

    rick88blaze 1/2 ton status

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    i've got mine down on the collector. i haven't had any problems yet. and it's just the stock O2 sensor also.
     
  11. bigburban383

    bigburban383 1/2 ton status

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    Well, im not going to spend any money and try it on the collector. Thanks for the help /forums/images/graemlins/thumb.gif
     
  12. 55Willy

    55Willy 3/4 ton status

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    it's a stock 3/4 ton burb with a th400.
    it's right where the two pipe come together and is mounted on the top side with a one wire sensor ( no heat wire)
     

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