How does gm v8 DOD AFM work in tahoe, suburban, yukon, etc

Tahoe, Yukon, Suburban, Silverado and Commodore I answer How does gm DOD or AFM work? also known as displacement on demand or active fuel management.

Note: this leads me to ? whether or not the valley plate should be replaced if you do the cheap fix. see my other video and comment and if you do the cheap fix please help me answer my ? in the other videos comments section it is pinned on top. https://youtu.be/I_RUO6EgII0

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related codes I know of thus far p0301, p0304, p0306, p0307, p3400, p0106

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