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Thread: Infered MAP values

  1. #1
    Potential Tuner
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    Jun 2023
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    Infered MAP values

    This is the stock file from my truck with SOTF enabled, any reason why my inffered map shows such low values? Checked the non SOTF read off the truck and same values minus the SOTF slots. Is there a factor wrong or something? Truck has the latest flash from FDJS done yesterday.
    inferred map.png

  2. #2
    Advanced Tuner JaegerWrenching's Avatar
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    Jun 2018
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    No that's how it is supposed to be. Nothing is wrong and that is not really MAP, but rather boost or pressure above atmosphere. Which is why it's barley above 0 at lower rpm,mg/stroke.

  3. #3
    Potential Tuner
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    I understand its not really MAP, but I have never seen a file factor Baro into a MAP value(But I am a little muddy on this inffered map I'm guessing its purley inferred off the MAF and IAT or something). I had them in PSI for the screen shot and because this truck has a PSI Gauge so I took it for a rip to make notes. This truck hits 25 PSIG above baro at WOT and will regularly be 7-15 PSIG during normal driving. According the that table I should be seeing 1.65~10.8 PSIG under the same conditions.

  4. #4
    Advanced Tuner JaegerWrenching's Avatar
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    View it more like a Minimum table, instead of a desired boost table.