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Thread: VCM Log File Not Showing RPM Drop / Gear Changes

  1. #1
    Potential Tuner
    Join Date
    Aug 2021
    Location
    Dallas, TX.
    Posts
    5

    VCM Log File Not Showing RPM Drop / Gear Changes

    Hello HP Tuner Community!

    First time poster - I searched for this issue prior to the post .

    I have a remote tuner helping me out - he has been doing a fantastic job on the car!

    2020 Dodge Challenger Scat Pack
    - Modded

    Recently, I made changes to the VCM Scanner, adding a few channels and I figured out how to organize the channel list as well. When I sent over the latest log file, the tuner said it looked like a random WOT hit. No RPM drops. Looking at the file, I see it too. My speed over time 0-93MPH and the Trans Commanded Gear is showing the changes but the RPM does not change, it gets to 6K+ and holds on the log.

    That Channel is -> Engine RPM (SAE) [Angular Frequency] - is this correct?

    Strange issue...

  2. #2
    Potential Tuner
    Join Date
    Aug 2021
    Location
    Dallas, TX.
    Posts
    5
    UPDATE: Did some troubleshooting yesterday. I loaded a previous tune, made a pass and recorded it. Then re-loaded the latest tune that had the logging issue above. Now the RPM's recorded as normal showing drops during a gear change.

    Looks like the issue may be fixed. But my curiosity here - has anyone seen this behavior before?