Range RA003 AFM/DFM Disabler

This device plugs into a vehicle's onboard diagnostics port (OBD-II) to prevent the engine from dropping cylinders, ensuring it runs in full cylinder mode at all times. Function: Disables Active Fuel Management (AFM) or Dynamic Fuel Management (DFM) systems in V6 or V8 GM vehicles. Installation: Simply plugs into the vehicle's OBD-II port; no tuning or tools are needed. Warranty: Patented technology leaves no trace and does not reprogram the factory ECU, so it will not void the factory warranty. Benefits: Helps avoid oil consumption and potential lifter failure issues associated with AFM/DFM, and can also disable the auto start/stop feature on some vehicles.