active fuel managment

Discussion in 'Performance & Fuel' started by black03silverado, Jun 23, 2009.

  1. black03silverado

    black03silverado Rockstar

    Does anyone know if the active fuel management can be shut off on my 08 silverado 5.3L?
  2. nickgiacalone

    nickgiacalone Rockstar 100 Posts

    why would you want to shut it off? and no i do not know if you can shut it off lol
  3. black03silverado

    black03silverado Rockstar

    i have a magnaflow cat-back system on it and when it shuts off 4 cylinders it sounds sick
  4. nickgiacalone

    nickgiacalone Rockstar 100 Posts

    makes sense, i do not know of any way to shut it off. I'm sure its something in the ECU (ECM) so hopefully someone on here that knows more about tuning could help you with a custom tune or handheld programmer that might de-activate the active fuel management. My truck however does not have active fuel management (I dont think any of the 2500's do)
  5. Mean_Green_95

    Mean_Green_95 Epic Member 5+ Years 1000 Posts

    There is an exhaust system out there that works with the active fuel management system. I dont remember the name of it, but you should be able to google it.
  6. 2ToNe04

    2ToNe04 Epic Member 5+ Years 1000 Posts

    i think you can tune it off.
  7. black03silverado

    black03silverado Rockstar

    i have been told that the diablo sport "predator" programmer can shut it off, does anyone know for sure if this is true??
  8. ajarman

    ajarman Rockstar 4 Years ROTM Winner 1000 Posts

    100% sure the Diablo has the feature to turn AFM aka DOD off. My buddy has the Gibson super truck cat back and had to buy a Diablo because of the tractor sound. I have heard the Corsa cat back is tuned for 4cyl and 8cyl but cost out the ass.
  9. silveradotrailblazer

    silveradotrailblazer Epic Member 5+ Years ROTM Winner 5000 Posts

    The Diablo DOES turn off afm or dod. You want part# U7194. If you go to and than to product and put in that part # it will show everything it can do.
  10. black03silverado

    black03silverado Rockstar

    i will check it out thanks guys!!!

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