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Thread: Lambda is driving me nuts

  1. #1
    Senior Tuner Lakegoat's Avatar
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    Lambda is driving me nuts

    I just switched to Lambda because of larger injectors. I have posted a screen shot of a log. In it, my stft show 2% rich and lambda shows 12% lean, 16afr---or at least that is what I see. Maybe somebody can straighten me out. Please
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    2000 Camaro SS 2015 L83 port injected, Whipple 3.0, 4L80E, 8.8 Ford
    2013 Silverado 5.3, 6L80k 8.8

  2. #2
    Tuner in Training ants-gts's Avatar
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    i see same looks like u need to set voltage offset up for wideband
    also log commanded eq and eq error makes it easier to see what is going on
    2013 GEN F GTS (the stormtrooper)
    mods- BTR stg3 cam, pac valve springs, harrop intake, ID850s, forced induction interchiller, 2.55 upper/9.17 lower pullys, snow performance water/meth injection, defillipo 3" catback, cat delete pipes, built and tuned by me

  3. #3
    Senior Tuner Lakegoat's Avatar
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    Yeah, I was thinking that my narrow bands and wideband should be reading about the same? I had to increase the boost ve table a bunch, but if my wideband offset is off, that means boost is rich? I am logging commanded eq and eq error. I am going to up the offset about 10% and see where that puts me.
    Thanks
    2000 Camaro SS 2015 L83 port injected, Whipple 3.0, 4L80E, 8.8 Ford
    2013 Silverado 5.3, 6L80k 8.8

  4. #4
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    Wideband looks wrong to me. Tough to say without a log

    You should be getting lambda = 1 right at the points where the narrowbands cross 450mv, more or less
    Last edited by schpenxel; 10-20-2016 at 02:10 PM.
    Post a log and tune if you want help

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  5. #5
    Senior Tuner Lakegoat's Avatar
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    Well crap. Opened up the wideband and it had switched to an earlier setup. I guess that I didn't save the channel correctly. Probably clicked save layout.
    2000 Camaro SS 2015 L83 port injected, Whipple 3.0, 4L80E, 8.8 Ford
    2013 Silverado 5.3, 6L80k 8.8

  6. #6
    Tuner in Training ants-gts's Avatar
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    lol i did the same thing last night
    i have a innovate in the car i use to use for tuning now just to monitor
    i use a ballenger afr500v2 for tuning
    fired up my scanner and was reading wrong to me a bit to figure out it was set up for the innovate
    2013 GEN F GTS (the stormtrooper)
    mods- BTR stg3 cam, pac valve springs, harrop intake, ID850s, forced induction interchiller, 2.55 upper/9.17 lower pullys, snow performance water/meth injection, defillipo 3" catback, cat delete pipes, built and tuned by me

  7. #7
    Senior Tuner Lakegoat's Avatar
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    schpenxel, I changed it back to the numbers that you gave me. Now it is correct---again.
    2000 Camaro SS 2015 L83 port injected, Whipple 3.0, 4L80E, 8.8 Ford
    2013 Silverado 5.3, 6L80k 8.8