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Old Aug 20, 2014 | 05:44 PM
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WelderGuy's Avatar
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Default Question about AFM

When the engine goes into four-cylinder mode, is it always the same four cylinders, or do the other four also get some time off during the life of the car?
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Old Aug 20, 2014 | 05:49 PM
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its always the same 4 (1, 4, 6, and 7), the primary reason being that if you alternated to
the other 4 you would have a second set of harmonic vibrations to deal with.

Last edited by Asterism; Aug 20, 2014 at 05:58 PM.
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Old Aug 20, 2014 | 05:49 PM
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Always the same ones. At 1,300 miles I have not let my engine operate on four cylinders as yet. With the manual transmission the mode select has to be in economy to have only four cylinder operation.
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Old Aug 20, 2014 | 06:32 PM
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Originally Posted by Asterism
its always the same 4 (1, 4, 6, and 7), the primary reason being that if you alternated to
the other 4 you would have a second set of harmonic vibrations to deal with.
well put
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Old Aug 20, 2014 | 06:40 PM
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Initially I was all set to hate this feature and planned on getting a Diablo tune, but after living with for almost a month I can honestly say it's no big deal. If I didn't have my LCD screen set to display AFM mode I'd never know it was operating. So I no longer display that screen.

Does it save any gas, hard to say, but it doesn't hinder the performance or driving experience. For the record my last car was a 2007 Z06 so if AFM was a flawed design I'd feel it and bitch about it.

I no longer care about it, it's that seemless.
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