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Announcement

vF Tuner Version 1.2.7.8 Release

If you have vF Tuner, please update to this version.

- New ECUs available
- New tables for Tundra, Tacoma
- New AlphaN controls - Tundra 2018+
- Beta Support 0CM52 2016 Tundra FFV
- New tables for scion tC (21272 support)
- Access for scion tC owners to update their calibration to 21272
- New tables for Highlander / Kluger / new ECUs
- Other useful changes
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2016 MT Rev Hang

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  • 2016 MT Rev Hang

    Hello!

    Under heavy load, my 2016 MT's revs hang during a shift. It's a really unpleasant driving experience. What causes this and how can we mitigate it?

    Thanks!

  • #2
    Originally posted by b3itz View Post
    Hello!

    Under heavy load, my 2016 MT's revs hang during a shift. It's a really unpleasant driving experience. What causes this and how can we mitigate it?

    Thanks!

    Rev Hang is an emissions thing. I have seen articles that say that it is to prevent crankcase vapor from occurring with a quick drop in revs and / or that it is to prevent overly rich mixtures from fouling the cats. Neither make 100% sense given the close breather system and modern fuel controls.

    That said, VFTuner will be adding a couple patches to the an upcoming vF version to address Rev Hang and improve DFCO.
    2017 ACLB Sport 6MT BR - Edited Version 7 of 04B14 SFOB Prem OL on 92
    TSB PDFs are at nhtsa.gov / Click on Recalls, search by make and model (not VIN), and then click on Manufacturer Communications
    Latest vF Version Download

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