Announcement

Collapse
No announcement yet.

EFI O2 Sensor Location

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • HighwayThunder
    Experienced
    • Nov 19 2013
    • 139

    EFI O2 Sensor Location

    The easiest place to attach the O2 sensor would be the exhaust pipe H crossover. Is there any reason why that would not be OK?

    Thanks.

    Cheers,
    Richard
    Richard, '66 Thunderbird Hardtop, 390FE, Edelbrock Al heads, Comp cam, Street Demon 650 carb. Visit my restoration blog at hwythunder.com.
  • simplyconnected
    Administrator
    • May 26 2009
    • 8833

    #2
    You want the O2 Sensor in the hottest portion of your exhaust pipe. The hotter the better. To test for voltage, I use a propane torch. - Dave
    Member, Sons of the American Revolution

    CLICK HERE to see my custom hydraulic roller 390 FE build.

    "We've got to pause and ask ourselves: How much clean air do we need?"
    --Lee Iacocca

    From: Royal Oak, Michigan

    Comment

    • stubbie
      Experienced
      • Jul 7 2011
      • 299

      #3
      Optimum placement I believe is no more than 2 foot from the manifold.

      Comment

      • OX1
        Super-Experienced
        • Feb 10 2016
        • 559

        #4
        Is it a wideband? If so, you can reduce life if it is too close. 12-18" after manifold or header collector is usually the best compromise between accuracy and service life. Also make sure it is pointing at 10 or 2 O'clock, on the pipe. If it is pointing downward, it will get condensation in it and kill it quick.
        59-430-HT

        Comment

        • Dark Soul
          Apprentice
          • May 2 2019
          • 82

          #5
          All modern EFI systems use a wideband O2 sensor. The kit manufacturer should tell you the distance from the header. Mine is a FAST unit and I mounted it about 4" behind the transmission crossmember, in front of the parking brake lever, on the passenger side exhaust. I have a custom exhaust so yours may be different.

          Make sure to have the sensor mounted north of the 9:00 O'Clock position so condensation doesn't collect in the sensor tip.

          Comment

          Working...
          😀
          🥰
          🤢
          😎
          😡
          👍
          👎