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Thread: Good logging guide

  1. #1
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    Good logging guide

    During my quest to figure out the best things to log before i put a tune on my car, i was directed to malone tuning for a how-to on logging. if you follow their process, send them you logs, they'll compile them and send back an out put. however, this doesn't work for newer ASAM/UDS cars. so i worked with Arodrigues at fixmyvw to determine what is needed for newer cars. below are the groups to log in the adv. meas. blocks. You can replay them with vc-scope however, i havent figured out how to display in PSI and Fahrenheit so its still foreign data to me at this point. im hoping that when i send then logs to malone or Arodriguez, theyll do the conversions and send back useful info. once i know more, ill update

    Group1
    Charge air pressure; actual value hPa
    Charge air pressure; specified value hPa
    Engine Speed

    Group2
    Engine Speed
    Exhaust gas temperature sensor 1

    Group3
    Engine Speed
    02 sensor 1 bank 1
    02 sensor actual value

    Group4
    Engine Speed
    Limitation smoke Nm
    Exhaust gas temperature sensor 2

  2. #2
    Verified VCDS User romad's Avatar
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    To convert hPa (hectoPascals) to PSI, multiply the hPa number by 0.014503773800722. To convert PSI to hPa, divide the PSI number by the same 0.014503773800722.

    The formula used for converting a specific value from hectopascals to pounds per square inch is:

    X hectopascals * cf = Y pounds per square inch

    where
    X = the specific value to be converted (in hectopascals)
    cf = the conversion factor from hectopascals to pounds per square inch
    Y = the result (in pounds per square inch)

    Example
    Let's suppose that you have a value of pressure of 439 hectopascals and want to express it in pounds per square inch.
    439 hPa = (439 0.014503773800722) psi
    439 hPa = 6.3671566985169 psi
    Conversion factor

    1 hectopascal is equal to 0.014503773800722 pound per square inch
    (1 hPa = 0.014503773800722 psi )



    To convert Celsius to Fahrenheit, the formula is (C x 1.8) + 32 = F Example: 100 x 1.8 = 180, 180 + 32 = 212. (Or long way: C x 9 then the result divided by 5, then you add 32 to that result. Example: 100 x 9 = 900, 900 / 5 = 180, + 32 = 212)

    To convert Fahrenheit to Celsius, you first subtract 32 from the C number, next you multiply the result by 5, then finally you divide the last result by 9. Example: 212 - 32 = 180, 180 x 5 = 900, 900 / 9 = 100


    OR you can either just go to http://www.conversion-website.com and use the appropriate converter, or use one of the hundreds of conversion apps for your smartphone of choice.

  3. #3
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    Quote Originally Posted by romad View Post
    To convert hPa (hectoPascals) to PSI, multiply the hPa number by 0.014503773800722. To convert PSI to hPa, divide the PSI number by the same 0.014503773800722.

    The formula used for converting a specific value from hectopascals to pounds per square inch is:

    X hectopascals * cf = Y pounds per square inch

    where
    X = the specific value to be converted (in hectopascals)
    cf = the conversion factor from hectopascals to pounds per square inch
    Y = the result (in pounds per square inch)

    Example
    Let's suppose that you have a value of pressure of 439 hectopascals and want to express it in pounds per square inch.
    439 hPa = (439 0.014503773800722) psi
    439 hPa = 6.3671566985169 psi
    Conversion factor

    1 hectopascal is equal to 0.014503773800722 pound per square inch
    (1 hPa = 0.014503773800722 psi )



    To convert Celsius to Fahrenheit, the formula is (C x 1.8) + 32 = F Example: 100 x 1.8 = 180, 180 + 32 = 212. (Or long way: C x 9 then the result divided by 5, then you add 32 to that result. Example: 100 x 9 = 900, 900 / 5 = 180, + 32 = 212)

    To convert Fahrenheit to Celsius, you first subtract 32 from the C number, next you multiply the result by 5, then finally you divide the last result by 9. Example: 212 - 32 = 180, 180 x 5 = 900, 900 / 9 = 100


    OR you can either just go to http://www.conversion-website.com and use the appropriate converter, or use one of the hundreds of conversion apps for your smartphone of choice.
    Thanks for all of that. I'm aware if the conversions however, not sure the best method to get those converted so that vc-scope can reply them how I'd like to see them.

  4. #4
    Verified VCDS User romad's Avatar
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    I doubt you can, without a major reprogramming of the ECU or whatever onboard computer is used. Remember that only these United States, Burma, & Liberia still use non-metric measurements in every day use. If I need to know the English value of a metric value (or vice versa), I just do a conversion. The basic distance/length, weight, and temperature values I can do in my head fairly quickly but others like pressure, I need to use a conversion app/site, or work it out on paper.

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