Description
GMAFM AFM/DFM Disable Device (Active Fuel Management AFM Disabler)
👍 PLUG AND PLAY
👍 KEEP IN V6/V8 MODE
👍 100% POWER OF THE TIME
👍 KEEP THE FACTORY ECU
👍 COMPATIBLE WITH V6/V8 GM MOTORS
【Currently NOT compatible】
– NOT compatible with 2019+ Silverado and Sierra with 5.3/6.2L motors and 10-speed transmissions.
– NOT compatible with C8 Corvettes. NOT compatible with 2022 Refresh model trucks or SUV’s.
– NOT compatible with 2023 OR 2024 MODELS.
【Lights tips】
★ One light on : Power is ON and unit is AWAKE and vehicle is ready for commands.
★ Three of four lights on : Vehicle V8 mode is legal ( no engine damaging DTCs present or other parameters out of spec).
【Battery Care】
If the GMAFM Disabler is not used for an extended period, please remove the device to prevent battery drain.
Imported customer feedback
What customers reported
3.2 / 5
4 ratings
Source: Amazon. These reviews were imported from the source marketplace and are not reviews of purchases made on this website.
Vehicle information
Available fitment details
Listing compatibility notes
- 【Broad Compatibility】 Compatible with most V6 and V8 GM vehicles with active or dynamic fuel management, including cars, trucks, and SUVs.
- 【Compatibility Note】 The GMAFM AFM/DFM Disabler is not compatible with 2019+ Silverado and Sierra models equipped with 5.
- GMAFM AFM/DFM Disable Device (Active Fuel Management AFM Disabler) 👍 PLUG AND PLAY 👍 KEEP IN V6/V8 MODE 👍 100% POWER OF THE TIME 👍 KEEP THE FACTORY ECU 👍 COMPATIBLE WITH V6/V8 GM MOTORS 【Currently NOT compatible】 - NOT compatible with 2019+ Silverado and Sierra with 5.
- - NOT compatible with C8 Corvettes.
- NOT compatible with 2022 Refresh model trucks or SUV's.
- - NOT compatible with 2023 OR 2024 MODELS.
Fitment data is provided as a buying aid. Verify the listing against your vehicle and existing part before ordering.
Exact identity, part numbers, model references, and available compatibility evidence
Buying guidance
Quick decision
An identity-first engine management systems listing organized around stable product references and available compatibility evidence.
Fit and size notes
- Match the complete identifier, side, position, connector, dimensions, and visible design with the existing part.
- Treat uncertain vehicle notes as a buying aid, not as a confirmed fitment guarantee.
Specification notes
- Canonical product: MP-US-B0DC6Y8S5H
- Source product ID: B0DC6Y8S5H
- Category: Replacement Parts / Engines & Engine Parts / Engine Management Systems
- Available images: 9
Before you buy
- Match the complete identifier, side, position, connector, dimensions, and visible design with the existing part.
- Treat uncertain vehicle notes as a buying aid, not as a confirmed fitment guarantee.
E. Poe –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Amazon Vine Customer Review of Free Product( What's this? )
I have a manual transmission, and when I’m in traffic or sit through a light, it will do a “gears skipped for fuel economy” thing and lock out the transmission forcing you to shift from 1 to 4. There is a couple things that will get around it – either run first gear out to a higher RPM, or shift to neutral and wait .5-1 second for the message to clear, both of which are mildly annoying. I got this hoping it would override that one line of code, and unfortunately, it doesn’t. I drive my car in performance mode, which changes several driving characteristics, so this device didn’t change my car at all. For reference, 2017 Chevy SS.
Keeffer –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Amazon Vine Customer Review of Free Product( What's this? )
I used this on a 2007 Suburban with a V8 automatic trans. I just plugged it in, and it worked—no muss, no fuss. Otherwise, the seller advises unplugging the device when it is not in use to avoid battery drain.
TaroReadr –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Amazon Vine Customer Review of Free Product( What's this? )
Husband hated it. Said his truck ran better without it.
Rudy –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: .review-text-read-more-expander:focus-visible { outline: 2px solid #2162a1; outline-offset: 2px; border-radius: 5px; } I used to feel like my engine was “slacking off” at times, especially during low-speed driving when the cylinder deactivation would kick in. With the AFM Disabler, the engine now works seamlessly in full-cylinder mode. The power delivery is smooth and linear, making driving far more enjoyable. Every acceleration and deceleration feels natural—what a difference!
I used to feel like my engine was “slacking off” at times, especially during low-speed driving when the cylinder deactivation would kick in. With the AFM Disabler, the engine now works seamlessly in full-cylinder mode. The power delivery is smooth and linear, making driving far more enjoyable. Every acceleration and deceleration feels natural—what a difference!