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Thread: Wideband Problem

  1. #1
    Tuner in Training
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    Wideband Problem

    I setup my wideband through my EGR and finally got the formula pretty close. However, whenever I go WOT, my gauge reads 10.0 AFR, however the formula is putting it around 11.4 AFR in HP Tuners. At all other readings, my gauge and histogram are basically matching. What should I do!?

  2. #2
    Tuner in Training 99ssei's Avatar
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    Commanded AFR does not always mean actual AFR, hence the reason for getting a wideband....so we can see what's really going on.
    99 Dark Metallic Bronzemist SSEi, 187K, S3, P&P GenV, 3.4MPS, N*TB & LQ4, SLP Headers, Cat & EGR Delete, Hockey puck TA mount, Solid Trans/Motor mount, KYB fronts, MSD Wires&Coils, TRE-340, Thrasher CAI w/ 9" K&N, C-Ya Shift Kit, Hayden Trans cooler.

  3. #3
    Here's what my wideband PID looks like. I have an AEM analog wideband (it has a needle rather than digital):


  4. #4
    Tuner in Training
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    Does anyone have a digital AEM wideband, and if so, what is the formula you use to convert from volts to AFR?

  5. #5
    Advanced Tuner
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    Old Orchard Beach Maine
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    out of the help file>working with scanner> enhanced eio configuration >Predefined Inputs - f1 is your friend lol


    Wide Band O2 - LM1: result = volts / .5 + 10
    Wide Band O2 - TE 2A0: result = volts / .5 + 9
    Wide Band O2 - PLX: result = volts / .5 + 10
    Wide Band O2 - Autronic MAFM1: result = volts / .25 + 10
    Wide Band O2 - AEM: result = volts / .5 + 10
    Wide Band O2 - AFM1000: result = volts / .5 + 8
    Wide Band O2 - G100: result = volts / 0.71248 + 9
    Wide Band O2 - DynoJet: result = volts / .625 + 10
    Wide Band O2 - LC1: result = volts / 0.3324 + 7.35
    Wide Band O2 - NGK: result = volts / 0.7142 + 9
    Wide Band O2 - FJO: Internal non-linear map.


    1 Bar MAP - GM: result = volts / .0533 + 10.354
    2 Bar MAP - GM: result = volts / .02517 + 9


    Fuel Pressure - Autometer: result = volts / .04 - 12.5


    Raw Voltage: result = volts / 1 + 0
    PB's 1/4 mi 12.21 117.75 trap ,1/8 mi. 7.779 93.99trap , 1.949 short time (FWD W body)

  6. #6
    Tuner in Training 99ssei's Avatar
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    Sweet! I have AEM WB that is going in soon. Thanks!
    99 Dark Metallic Bronzemist SSEi, 187K, S3, P&P GenV, 3.4MPS, N*TB & LQ4, SLP Headers, Cat & EGR Delete, Hockey puck TA mount, Solid Trans/Motor mount, KYB fronts, MSD Wires&Coils, TRE-340, Thrasher CAI w/ 9" K&N, C-Ya Shift Kit, Hayden Trans cooler.