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Thread: Help tuning out AFM?

  1. #1
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    Default Help tuning out AFM?

    Just got the wife a Envoy XL Denali and I want to tune the AFM out so it doesn't drone in the city with its new exhaust. Anyone able to help me out?
    Mine2001 GMC 2500HD EC/LB, D/A. 4in MBRP exhaust, AFE Stage II w/Amsoil Ea air filter, ISSPRO boost/Pyro guages, PPE Boost Valve, EFI Live V2, Maximum OD Stage 2 Trans, Amsoil throughout, AirDog150, modded intake horn.

    540HP/1056TQ
    Dyno'd Danville Performance
    April 5th 2011

    Hers: 2006 GMC Envoy XL Denali, Flowmaster 40 with a bullet style resonator in the back, EFI Live with the help of JoeCar and other great members here.

  2. #2
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    Ok, pulled the ECM tune and what in the Sam Houston did I just get myself into? Beginning to miss my Duramax and the old Suburban! I was not much of a gas tuner, I fiddled with a 2002 Suburban's 5.3 and hit a home run right off the bat with some chance guessing and changes, but this engine is a whole new animal. Any help you guys could offer or advice would be great.
    Mine2001 GMC 2500HD EC/LB, D/A. 4in MBRP exhaust, AFE Stage II w/Amsoil Ea air filter, ISSPRO boost/Pyro guages, PPE Boost Valve, EFI Live V2, Maximum OD Stage 2 Trans, Amsoil throughout, AirDog150, modded intake horn.

    540HP/1056TQ
    Dyno'd Danville Performance
    April 5th 2011

    Hers: 2006 GMC Envoy XL Denali, Flowmaster 40 with a bullet style resonator in the back, EFI Live with the help of JoeCar and other great members here.

  3. #3
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    So, here's what I'm looking to do with the wife's speedy grocery getter. I want to disable AFM, which I think I can do by just disabling it, am I correct? Then I want to try to increase its overall power a little, get it ready for a set of E fans and also setup another tune for all out fuel economy for when I go on vacation.

    What kind of knowledge can you bestow on this ole diesel guy gone gasser?
    Mine2001 GMC 2500HD EC/LB, D/A. 4in MBRP exhaust, AFE Stage II w/Amsoil Ea air filter, ISSPRO boost/Pyro guages, PPE Boost Valve, EFI Live V2, Maximum OD Stage 2 Trans, Amsoil throughout, AirDog150, modded intake horn.

    540HP/1056TQ
    Dyno'd Danville Performance
    April 5th 2011

    Hers: 2006 GMC Envoy XL Denali, Flowmaster 40 with a bullet style resonator in the back, EFI Live with the help of JoeCar and other great members here.

  4. #4
    Joe (Moderator) joecar's Avatar
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    AFM is disabled by replacing the valley cover with an AFM/DOD-delete valley cover (it seals off the solenoid spaces).

  5. #5
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    Can it be disabled in the tuning so it doesn't activate? I want to keep the hard parts for long drives, just disable it in town.
    Mine2001 GMC 2500HD EC/LB, D/A. 4in MBRP exhaust, AFE Stage II w/Amsoil Ea air filter, ISSPRO boost/Pyro guages, PPE Boost Valve, EFI Live V2, Maximum OD Stage 2 Trans, Amsoil throughout, AirDog150, modded intake horn.

    540HP/1056TQ
    Dyno'd Danville Performance
    April 5th 2011

    Hers: 2006 GMC Envoy XL Denali, Flowmaster 40 with a bullet style resonator in the back, EFI Live with the help of JoeCar and other great members here.

  6. #6
    Joe (Moderator) joecar's Avatar
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    Post your tune file.

  7. #7
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    Crap, I'm on my phone too buddy. I did see a spot while playing half asleep last night in a DOD? Is that AFM? If so, it has a Enable/Disable section. If disable shuts it down, then I'm good to hook.

    And I am trying to help the 2500HD guy track down the real issue, since those bigger trucks are my old forte, as a former admin at Dieselplace.
    Mine2001 GMC 2500HD EC/LB, D/A. 4in MBRP exhaust, AFE Stage II w/Amsoil Ea air filter, ISSPRO boost/Pyro guages, PPE Boost Valve, EFI Live V2, Maximum OD Stage 2 Trans, Amsoil throughout, AirDog150, modded intake horn.

    540HP/1056TQ
    Dyno'd Danville Performance
    April 5th 2011

    Hers: 2006 GMC Envoy XL Denali, Flowmaster 40 with a bullet style resonator in the back, EFI Live with the help of JoeCar and other great members here.

  8. #8
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by horsehaulin View Post
    Crap, I'm on my phone too buddy. I did see a spot while playing half asleep last night in a DOD? Is that AFM? If so, it has a Enable/Disable section. If disable shuts it down, then I'm good to hook.

    And I am trying to help the 2500HD guy track down the real issue, since those bigger trucks are my old forte, as a former admin at Dieselplace.
    That would be it.

  9. #9
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    Quote Originally Posted by joecar View Post
    That would be it.
    Thank you sir.

    Now to tune a little city performance into it and then install an intake. Maybe build on top of the DOD/AFM for this summers vacation and attempt better fuel economy than it already gets.
    Mine2001 GMC 2500HD EC/LB, D/A. 4in MBRP exhaust, AFE Stage II w/Amsoil Ea air filter, ISSPRO boost/Pyro guages, PPE Boost Valve, EFI Live V2, Maximum OD Stage 2 Trans, Amsoil throughout, AirDog150, modded intake horn.

    540HP/1056TQ
    Dyno'd Danville Performance
    April 5th 2011

    Hers: 2006 GMC Envoy XL Denali, Flowmaster 40 with a bullet style resonator in the back, EFI Live with the help of JoeCar and other great members here.

  10. #10
    Joe (Moderator) joecar's Avatar
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    Post the tune file anyway, please, I want to take a closer look

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