2012 Active Fuel Management (AFM)

I'm wondering how to correctly disable the AFM feature on a 2012 5.3 liter, or should I even attempt to disable AFM?

Is B0921 the only "switch" for this option?

I'm wondering if the Valve Lifter Oil Manifold is affected with / by AFM?

Thanks,

dave w

AFM is the cylinder deactivation via the lifters/oil solenoids if thats the question?

Quote:

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Originally Posted by brian617

AFM is the cylinder deactivation via the lifters/oil solenoids if thats the question?

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Ah, I see my question is a little vague. This is my first experience with AFM.

I want to disable AFM in the EFI Live programming. I'm wondering if B0921 is the only parameter needed to disable AFM?

dave w

Don't have any experience with that end of it, just have fixed a few of those trucks with lifter problems replacing cams lifters etc.

Yes, just set B0921 to No. That's it.