Range Technology RA002 V4 Fuel Economy Module - AFM Plus

The Range Technology RA002 AFM Plus has garnered mixed feedback from customers. While some users report that the product functions as expected, others have encountered uncertainties regarding its performance. For instance, a user noted that after installation on a 2017 GMC Denali 1500, they were unsure whether the device was working properly since the truck still displayed a switch between V4 and V6 modes as it typically does. Moreover, there was a mention that the blue indicator light, typically signifying operation, no longer remained lit, adding to the uncertainty about the device's effectiveness. Overall, while the device is designed to disable the Active Fuel Management (AFM) feature and enhance fuel efficiency, some customers seem to struggle with its assurance of functionality and reliable performance. Questions about its impact on vehicle performance and unclear feedback from the device might lead potential buyers to approach this product with caution. **