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Thread: O2 sensor location

  1. #1
    Member JOURNEYMAN
    Join Date
    Oct 2004
    Location
    arizona
    Posts
    32

    O2 sensor location

    Hi All
    Just purchased a racepak single channel A/F monitor. Racepak recommends 12" out in the header. Would like opinions on which cylinder they would monitor and why.
    Thanks
    Mike

  2. #2
    Member JOURNEYMAN
    Join Date
    Oct 2004
    Location
    arizona
    Posts
    32

    O2 sensor location

    This is a BB Chevy

  3. #3
    Junior Member SHOW GUEST
    Join Date
    Apr 2003
    Posts
    3
    I would think that you need to put it in the collector.if your in just 1 pipe you are not going to get an average reading.it's bad enough that your do not have 2 o2s.do not limit yourself to only reading 1 cylinder

  4. #4
    Senior Member RACING JUNKIE
    Join Date
    Jan 2006
    Location
    La.
    Posts
    2,890
    Quote Originally Posted by 72sat
    I would think that you need to put it in the collector.if your in just 1 pipe you are not going to get an average reading.it's bad enough that your do not have 2 o2s.do not limit yourself to only reading 1 cylinder
    X2, 1/2 way back in the collector.

    but i agree you're not going to get an accurate reading from only 1 side of the engine, unless it's an injected engine and even then i have my doubts. Single plane maniflod, carberated, impossible.

    JMO

    Zip.


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