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Thread: AFM/DoD controls?

  1. #1
    New Member
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    Question AFM/DoD controls?

    Im messing around with my new 14 silverado and i wanted to start playing around with the AFM controls just to see what i could make it do.

    I see no reason that with some cam angle work that the truck couldn't maintain 70 down the highway over all but the steepest hills.

    however, i need to learn how to crawl before i walk here so i started changing things like max TPS, TPS Hyst(both +/- changes) and things were OK. then i wanted to see if i could get the truck to idle in V4...

    MIN RPM per gear set to 0
    AFM Enable TPS P/N set to 0
    AFM Min VSS set to 0
    AFM Min VSS Hyst set to 0

    and nothing....

    am i missing something? or are the needed tables just yet to "discovered"?

    any one ever tried this with any luck?

  2. #2
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    Default

    I cant be the only one who wants to do this

  3. #3
    Joe (Moderator) joecar's Avatar
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    Everyone I know usually disables AFM/DoD... but that's just who I know...

  4. #4
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    I just see no reason to kill it. its a useful function to have, and with the truck going SC here soon id love to play around with boosted V4 mode

  5. #5
    Joe (Moderator) joecar's Avatar
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    It's not very useful... you have a SC, surely you're objective is to make HP/TQ, not to save gas (which is cheaper than Arrowhead water)...

    Also, I'm not fully sure, but when cylinders deactivate, they would run cooler which causes ring wear to accelerate altho it is only for short periods of time).

    GM introduced AFM/DoD to more easily meet CAFE fuel economy requirements.

    It may be just me, but AFM/DoD is a bad idea (aftermarket sells AFM/DoD disable valley cover plates for cheap).

    I am a firm believer in using all of your cylinders all of the time.

  6. #6
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    Is it necessary to mechanically eliminate the DOD or can it be done with the calibration? At least until a lifter fails.

  7. #7
    Joe (Moderator) joecar's Avatar
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    Can be done either way, I'm not sure which is best.

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