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Tuning / Diagnostics -- engine and transmission Tune and diagnostics for engines and auto transmission.

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Old 12-28-2009, 07:02 PM   #1
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Will tuning out the AFM eliminate the engines ability to go to less than 8cyl?

So if I tune out the afm on the l99 will my car run on 8 cylinders all the time?

Also what would be the benefit of tuning out dod?

Last edited by Mustang Killa; 12-28-2009 at 07:08 PM. Reason: Add dod?
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Old 12-28-2009, 07:15 PM   #2
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Yes. It will run only on 8 Cylinders.

Benefit: You don't hear AFM kicking in.

This is from my understanding of AFM.
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Old 12-28-2009, 07:26 PM   #3
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You can also tune it to only be active say above 60mph... so you still have it on highway trips to save gas.

When you put on LT Headers it's a good idea to tune out DOD completely because the drone gets much worse. Pretty much just the noise that drives people crazy when it goes to 4 cyl mode.
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Old 12-28-2009, 07:50 PM   #4
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DOD is AFM!!
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Old 12-28-2009, 07:52 PM   #5
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DOD is AFM!!
Hmmm did someone say it wasn't...
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Old 12-28-2009, 08:23 PM   #6
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Quote:
Originally Posted by Mustang Killa View Post
So if I tune out the afm on the l99 will my car run on 8 cylinders all the time?

Also what would be the benefit of tuning out dod?

He asked about both DOD and AFM here. I wanted to make sure he knew both were the same.
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Old 12-28-2009, 08:31 PM   #7
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Thanks for everyones input.
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Old 12-28-2009, 08:33 PM   #8
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He asked about both DOD and AFM here. I wanted to make sure he knew both were the same.
Ahhh gotcha... I think the double !! threw me... LOL
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Old 12-30-2009, 06:04 PM   #9
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I just finished my winter tune. Its going to run on dod mode from 25mph up on 87 octane. LOL its going to be sweet.
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Old 12-31-2009, 09:40 AM   #10
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what does afm stand for?? pardon my ignorance!
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Old 12-31-2009, 09:42 AM   #11
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Air Fuel Management
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Old 12-31-2009, 09:48 AM   #12
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Air Fuel Management
nope

Active Fuel Management

And dod is displacement-on-demand

each are the same thing
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Old 12-31-2009, 10:53 AM   #13
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so the camaro has afm and vvt?
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Old 12-31-2009, 11:04 AM   #14
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so the camaro has afm and vvt?
Only one version of the Camaro... The V8 (L99) with Automatic Trans.
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Old 01-01-2010, 09:32 AM   #15
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Just a suggestion.
I would delete DOD/AFM completely (not just below 60mph or a certain speed).

AFM noises are very annoying at cruise speeds. Everytime you just barely get on and off the gas (while cruising just to maintain a constant speed) you'll get the AFM sounds. I hated the sounds just cruising to work down the main drag going 60mph or so.

With the AFM deleted (completely) you get nothing but great V8 sounds at all speeds and you don't get those annoying AFM noises while cruising.
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Old 01-05-2010, 06:05 PM   #16
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So, completely tuning AFM out, was your MPG difference significant? Also, what tuner are you guys recommending? Diablo?
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Old 01-05-2010, 10:26 PM   #17
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Quote:
Originally Posted by SGOS252382 View Post
Just a suggestion.
I would delete DOD/AFM completely (not just below 60mph or a certain speed).

AFM noises are very annoying at cruise speeds. Everytime you just barely get on and off the gas (while cruising just to maintain a constant speed) you'll get the AFM sounds. I hated the sounds just cruising to work down the main drag going 60mph or so.

With the AFM deleted (completely) you get nothing but great V8 sounds at all speeds and you don't get those annoying AFM noises while cruising.
remember that you have an aftermarket exhaust as well, that has a lot to do with the unpleasant sounds you've experienced with AFM.
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Old 01-07-2010, 10:21 PM   #18
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Quote:
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remember that you have an aftermarket exhaust as well, that has a lot to do with the unpleasant sounds you've experienced with AFM.
Never really heard it until I put on maftermarket exhaust. Now its driving me crazy. I can feel it kick in and out and its so annoying!!!
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Old 01-08-2010, 09:29 AM   #19
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So, completely tuning AFM out, was your MPG difference significant? Also, what tuner are you guys recommending? Diablo?
The Predator or Trinity will allow you to disable AFM while improving the overall output of the vehicle. Check it out!
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Old 01-08-2010, 09:58 AM   #20
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So, completely tuning AFM out, was your MPG difference significant? Also, what tuner are you guys recommending? Diablo?
Predator tune. I lost about 2 MPG by turning off AFM.
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Old 01-08-2010, 10:34 AM   #21
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I've ordered insulation for my trunk compartment on my A6 SS. One camaro5 member says it helps eliminate the DROAN when the engine drops into 4 cyl mode. It's worth a try and will not affect the warranty.
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