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Thread: Oxygen sensor senisitivity/oscillation

  1. #1
    Tuner in Training
    Join Date
    Mar 2019
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    37

    Oxygen sensor senisitivity/oscillation

    Need advice, my OCD is going nuts.

    I have longtubes that merge into an X pipe about 24 inches post collectors. I have upstream bungs at collectors, then have downstream bungs about 8 to 12 inches past upstreams.

    I have my upstream 02 on passenger side in the downstream spot, because the wideband took its spot. When I turn trims on, it oscillates terribly and does not respond well. The other side is fine.

    Can I increase sensitivity on this side, or am I stuck with having another bung welded right next to the wideband? Dont have much room. I want to turn my trims on but cant due to this issue.

    Alex

  2. #2
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
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    13,533
    Can't you just move the wideband to the rear hole?

    It's not that much further and if you have no leaks, the readings on the sensor shouldn't change at all.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  3. #3
    Tuner in Training
    Join Date
    Mar 2019
    Posts
    37
    I could give it a shot. Im sure it would skew the reading a tad but better than not having any trims!