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Thread: 2004 Grand Prix GTP 3.8 V6 L32

  1. #1
    Potential Tuner
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    2004 Grand Prix GTP 3.8 V6 L32

    I have been trying to set up the histograms for my scanner and im not able to add a channel for cylinder airmass. The timing table in the tune file shows cylinder airmass vs rpm. Im not sure why i cant add that as a channel to be scanned in the scanner. Is there a user defined channel i can make with other sensors to calculate my cylinder airmass?

  2. #2
    Tuning Addict 5FDP's Avatar
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    What version of HP Tuners are you using?

    Did you re-poll for supported parameters while connected to the car?

    Cylinder airmass should be listed when you try to add it in the main channels list on the left.
    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
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    Cylinder airmass is not a channel because it's a math function based off total MAF flow. You should just have to set up a MAF channel, and then you can graph it from Maths.
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  4. #4
    Tuning Addict 5FDP's Avatar
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    I was able to pull it up on a 2000 Grand prix log that I had on my computer. It's not in the channels list on the left but this log was taken way back with 2.24 in like 2013. Cylinder airmass works with or without a MAF sensor.
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    Last edited by 5FDP; 05-09-2020 at 05:48 PM.
    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.

  5. #5
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    Quote Originally Posted by 5FDP View Post
    What version of HP Tuners are you using?

    Did you re-poll for supported parameters while connected to the car?

    Cylinder airmass should be listed when you try to add it in the main channels list on the left.
    Im using VCM Scanner version 4.0.2
    How do I repoll for supported parameters?

  6. #6
    Advanced Tuner ZeroBoostBuick's Avatar
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    Quote Originally Posted by chrisrexmandie View Post
    Im using VCM Scanner version 4.0.2
    How do I repoll for supported parameters?
    When VCM Scanner is connected to the vehicle, up top left, in the Vehicle tab.

    Like mentioned,.. you have to scan cyl airmass in the main channel log for you to use it in the histograms.