Description
Review this item in the context of the repair, installation access, nearby parts, and the result the completed job is intended to achieve.
The Range AFM/DFM Disabler allows your V6 or V8 GM vehicle to run in full cylinder mode at all times, preventing the Active or Dynamic Fuel Management system from dropping cylinders.;Range AFM/DFM Disabler keeps you in full power 100% of the time.; Simply plug into your onboard OBD-II port and it instantly begins working to eliminate the AFM/DFM system.; The power and control you need in any situation.; The Range AFM/DFM Disabler does not reprogram your factory ECU.; Leaves no trace. Unplug it to return to factory settings; Fits all V6 and V8 General Motors (GM) active or dynamic fuel management vehicles, includes cars, trucks, and SUVs.;
Vehicle information
Available fitment details
Listing compatibility notes
- Unplug it to return to factory settings; Fits all V6 and V8 General Motors (GM) active or dynamic fuel management vehicles, includes cars, trucks, and SUVs.
Fitment data is provided as a buying aid. Verify the listing against your vehicle and existing part before ordering.
Repair scenarios, installation, companion parts, and use outcomes
Buying guidance
Quick decision
Review this engine management systems in the context of the repair and the surrounding components.
Repair scenario
- Identify the symptom and confirm that this is the component required by the repair.
- Inspect nearby connectors, fasteners, and mating surfaces before installation.
Installation notes
- Use the listing instructions when present and follow the vehicle service procedure.
- Professional installation may be appropriate when the repair requires special tools or calibration.
Companion parts
- Inspect nearby fasteners, connectors, seals, fluids, and wear items before starting the repair.
- Use the service procedure and the visible package contents to identify any additional parts or tools required.
Before you buy
- Compare the listing title, photos, package contents, and specifications with the part being replaced.
- Confirm vehicle compatibility and installation requirements before ordering.
Customer feedback
Ratings and written reviews
4.3 / 5
127 source ratings
Source: Amazon. Imported marketplace feedback is shown for product research and is not a review of a purchase made on this website.
Eric Bowmaster –
I tried this on my 2014 Sierra with a 5.3 litre it does exactly what it’s supposed to do keeps in 8 cylinder making the truck run a lot smoother does not seem to shift and jerk all the time like it use to it did not affect the fuel mileage at all I am satisfied with this product and would recommend it for anyone who is wondering about it
Customer –
The box is battered and the unit was loose inside the box. Plugged it in and only one LED light is on. Smelled like it ran rich. 2017 Chevy Tahoe with 20l miles. It did stay in V8 mode. Defective if nothing more than LED lights not working and probs my used. Sending back. Will try again with a direct order from the manufacturer.Update: I ordered one direct from the manufacturer and the box and item is clearly brand new. The unit has a clear plastic protective vinyl on it which the unit above didn’t have. Works like it should. Seems like Amazon resellers are selling a lot of used/returned.
kenneth maynard –
it is ok but my truck shift harder since i put it in.but great no having the dam engine jumping between 4v and 8v all the time in the city.
anthonydorman –
Loved it work great car runs a lot better
Tural –
Bought it 1 month ago, so far is great. My truck wouldn’t go into V4 mode anymore since I leave it always on.
joe phelan –
All good so far just new time will tell
OneTek –
Plug and play… just make sure you select the correct model for your truck (year is important as it needs to be for that specific type of transmission). I didn’t notice any fuel mileage deterioration (might even be slightly better).
Ritchie Dodd –
The Range AFM disabler works exactly as advertised and I couldn’t be more pleased!
reuben storandt –
It works great .
George Bralove –
Easy to install it made the engine run smother improved performance
Tommy Fraser –
Installer et fonctionne pas parcontre le commerçant m’a rembourser et j’ai du payer moi même le retour au vendeur !
tracy –
Bought it and must say very impressed. Does what it says
Mark Charles –
Plugged it in and it will still shut off 1 out 5 times you stop. As far as I can tell it never did do away with the AFM. Very disappointed