Range Technology AFM (Active Fuel Management) Disabler, Blue

2022 Silverado pre-refresh, RPO codes L84 (5.3L V8) and MQE (8-speed transmission). Pre-refresh means Global A architecture and compatibility with the Range RA003, whereas trucks after that ("2022.5" and after) have Global B architecture and require the RA007. Range Pulsar LT can be used on just about any but it's more expensive. Lots of youtube content on all these devices. What a difference. It's like a different truck. Even in L7, which is supposed to disable DFM, the drive was clunky. Much nicer with this device, and the auto-stop is fully disabled with it installed regardless of the dash button. GM removed the display to show which cylinder mode you are in but based on the improved drive and the auto-stop, it certainly seems to be working and worth the money. I did also buy an OBD2 splitter so I can use a reader at the same time, and so that if I unplug this RA003 frequently I am not wearing out the factory connection.

Purchased this Range Technology AFM disabler for a Tahoe with 5.3L V8. My Tahoe would drop into the 4 Cylinder mode often, very annoying. I have never gotten used to the hesitation when the engine shifts back into the V8 mode in response to my attempt to accelerate, especially from a dead stop. When driving in normal traffic situations the 5.3L FMS constantly put the engine in and out of V8 to V4 and back distracting from the driving experience. Freeway driving was another area where the 5.3L FMS would drop the engine into V4 when my foot came off the pedal or while coasting which is especially annoying while towing a 6500 lbs. RV or when attempting to pass another vehicle. Installing the Range Technology Disabler has solved these problems and I have noticed the vehicle drives much smother. Yes, it cost more than the knockoffs, but I believe it's worth it. My first AFM disabler was a top-rated knockoff brand, cheaper for sure, but I found it didn't work as I thought it should have, it kept the Tahoe's 5.3L in V8 mode but something was missing, it wasn't smooth running like I experience with Range Technology FMS disabler also there was no way to see the lights on the disabler as they were partially covered with the wrap. Remember the old saying "You Only Get What You Pay For" applies here. I am pleasantly surprised with the build quality, ease of installation and the function of the Range Technology device. Only thing I don't like, nothing in the instructions give you a clear understanding of what ALL the light functions indicates but you can go to Range Technology's web site. Also, I have had no issues with the truck's battery SOC and I have seen a slight increase in fuel economy. I do recommend this device.

Works as intended, using it in a 2018 Camaro SS

I am in Australia. Ordered through Amazon. I read as many reviews I could find. Used in the Chev 1500 Silverado for a week or so and found it to be as advertised. Can't fault it at this time.

Buen producto