It replaces the AFM components with standard parts. Install an AFM Delete KitĪn AFM Delete Kit is recommended when an AFM lifter fails or when doing performance upgrades. There are two ways to disable or delete Active Fuel Management on your GM or Chevy Gen IV LS or LS-based Vortec engine-one is to install an AFM Disabler, and the second is to install an AFM Delete Kit. How to Delete or Disable AFM on GM/Chevy Engines AFM lifters have a history of failing and oil consumption can be a problem.Some drivers want V8 power under their foot at all times.
Many people find the four-cylinder sound annoying if their vehicle is equipped with a louder aftermarket exhaust.How Does AFM Affect Performance?ĪFM is good for gas mileage and can be 5-7 percent more fuel-efficient under certain conditions.
It is also known as Displacement on Demand (DoD) or cylinder deactivation.
Active Fuel Management (AFM) is a trademarked General Motors technology that improves gas mileage by shutting down half of the cylinders under light-load conditions to reduce fuel consumption.
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