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NHTSA ID Number: 10163690
Manufacturer Communication Number: PIP5663
Summary
This Preliminary information communicates AFM / DFM usage Information. providing additional information on the AFM and DFM systems
50 Affected Products
Vehicles
MAKE | MODEL | YEAR |
CADILLAC | CTS | 2017, 2019 |
CADILLAC | CTS-V | 2016, 2018 |
CADILLAC | ESCALADE | 2015-2019 |
CHEVROLET | CAMARO | 2016-2019 |
CHEVROLET | CORVETTE | 2014-2019 |
CHEVROLET | SILVERADO | 2017 |
CHEVROLET | SILVERADO 1500 | 2014, 2019 |
CHEVROLET | SILVERADO 2500 | 2015-2016, 2018, 2020 |
CHEVROLET | SILVERADO 4500HD | 2019 |
CHEVROLET | SUBURBAN | 2015-2019 |
CHEVROLET | TAHOE | 2015-2019 |
GMC | SIERRA 1500 | 2019 |
GMC | SIERRA 2500 | 2020 |
GMC | SIERRA DENALI | 2014-2019 |
GMC | YUKON DENALI | 2015-2019 |
SEOCONTENT-START
Bulletin No.: PIP5663
Published date: 07/31/2019
Preliminary Information
PIP5663 Information On AFM DFM Usage
Models
Brand: Model: Model Years:
VIN:
from to
Engine: Transmissions:
Cadillac CTS-V 2016 – 2019 All All 6.2
LT4 All
Cadillac Escalade 2015 – 2019 All All 6.2
L86 All
Chevrolet Camaro 2016 – 2019 All All 6.2 LT1
LT4 All
Chevrolet Corvette 2014 – 2019 All All 6.2 LT1
LT4 LT5 All Chevrolet Silverado LD 2014 – 2019
All All 4.3L LV3 5.3 L83 6.2 L86 All Chevrolet Silverado 1500 (New Model)
2019 All All 4.3L LV3 5.3 L84 6.2 L87 All Chevrolet Silverado 2500
3500 2020 All All 6.6 L8T
All
Chevrolet Suburban 2015 – 2019 All All 5.3 L83
6.2 L86 All
Chevrolet Tahoe 2015 – 2019 All All 5.3
L83 6.2 L86 All GMC Sierra Limited 2014 –
2019 All All 4.3L LV3 5.3 L83 6.2 L86 All GMC Sierra 1500 (New Model)
2019 All All 4.3L LV3 5.3 L84 6.2 L87 All GMC Sierra
2500 3500 2020 All All 6.6 L8T
All
GMC Yukon Models 2015 – 2019 All All 5.3 L83 6.2
L86 All
Involved Region or
Country North America
Condition AFM / DFM usage
Cause Informational
Correction:
AFM
To provide maximum fuel economy under light load driving conditions, the engine control module
(ECM) will command the cylinder deactivation system ON to deactivate engine cylinders 1, 7, 6, and
4, switching to a V4 mode. The engine will operate on 8 cylinders, or V8 mode, during engine
starting, engine idling, and medium to heavy throttle applications.
AFM – active fuel management strategy which deactivates the lifters on specific cylinders. On V8
engines it deactivates half of the cylinders (1,7,6, and 4) and on V6 engines it deactivates
only 2 of the cylinders (3 and 6).
LOMA – lifter oil manifold assembly is only used on legacy AFM applications
DFM (Dynamic Fuel Management)
Dynamic Fuel Management (DFM) is recognized as active fuel management technology with the
additional ability to deactivate any combination of cylinder valves for an internal combustion
engine. This technology combines millisecond-accurate torque control with cylinder deactivation to
optimize fuel consumption of spark ignited engines. The control of every cylinder event optimizes
engine operation such that peak effi ciency is obtained throughout the range of engine operation.
DFM extends cylinder deactivation to all cylinders, which allows for a large variety of firing
sequences. DFM can have rotating cylinder deactivation patterns as well as fixed patterns. For
rotating patterns, which cylinders are being deactivated can change with each subsequent engine
cycle.
Transitions between firing sequences is done in a continuous fashion, making the transitions
seamless and transparent to the vehicle operator.
DFM – dynamic fuel management which can deactivate the lifter on any cylinder at any time. Unlike
AFM, this can result any many different types of firing patterns, some of which are fixed patterns
(lik e ¼, ½, ¾) and others which are rotating (like 1/5, 1/3, 2/5, 2/3). This is only available
on small block engines (L84 and L87).
OCV – oil controlled valve is only used on small block engines. These provide faster response
times than L OMA and are required for DFM (on L84 and L87). OCVs are also used on L82 for AFM.
Below is a AFM DFM usage chart
Vehicles AFM
VLOM
4 Cylinder Deac.
DFM. OCV’s
FDFMNone Notes
Cadillac CTS-V LT4 Yes Yes No No
Always active
Camaro LT1 Yes Yes No No Automatic
only. AFM not active with
Manual trans
Camaro LT4 Yes No No No
Has the hardware, Not active Corvette LT1 Yes Yes No
No Auto Trans active, Manual Trans active
in ECO only
Corvette LT4 Yes Yes No No Auto
Trans active, Manual Trans active
in ECO only
Corvette LT5 No No No No Yes
No hardware on LT5 Escalade L86 Yes Yes No No
Silverado /Sierra L83, L86
Suburban / Tahoe / Yukon L83, L86
Yes Yes No No
Yes Yes No No
Silverado /Sierra L82 No Yes Yes No Silverado /Sierra L84
No No Yes Yes Silverado /Sierra L87 No
No Yes Yes
No No No No No hardware on L8T
Silverado /Sierra LV3 Yes Yes No No
GMT610 Van LV1 No No No No
No hardware on LV1 GMT610 Van L8T No No No No
No hardware on L8T
Version History
Version 1
Modified 07/31/2019 – Created on
SEOCONTENT-END
Bulletin No.: PIP5663
Published date: 07/31/2019
https://www.nhtsa.gov/recalls?nhtsaId=10163690
https://static.nhtsa.gov/odi/tsbs/2019/MC-10163690-9999.pdf
To View or Download this Document Click Here
“This site contains affiliate links for which OEMDTC may be compensated” |
- Compatible with V6 / V8 General Motors (GM) active or dynamic fuel management vehicles, includes cars, trucks, and SUVs.
- OBDCAR AFM/ DFM Disabler allows your V6/ V8 GM vehicle to run in full cylinder mode at all times, preventing the Active or Dynamic Fuel Management system from dropping cylinders.
- Fast and easy setup; simply plug into your onboard OBD-II port and it instantly begins working to eliminate the AFM/DFM system.
- Will not reprogram your factory ECU, unplug it to return to factory settings.
- Please confirm the compatibility before ordering it.
- The Range AFM/DFM Disabler allows your V6 or V8 vehicle to run in full cylinder mode at all times, preventing the Active or Dynamic Fuel Management system from dropping cylinders.
- Our patented technology is the only product that will disable Active or Dynamic Fuel Management without reprogramming the factory ECU. Full power delivery all the time without factory warranty concerns.
- 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 | Compatible with all V6 and V8 GM active or dynamic fuel management vehicles, includes cars, trucks, and SUVs.
- Please check compatibility
- No tools are required, Plugs to the OBD-II port and start to work.
- OBDDFM AFM/DFM Disabler keeps your motors in the V6/V8 mode full power all the time.
- Please note that this AFM Disabler does not modify your original ECU programming, Unplug it to reset to factory default settings.
- Compatibles with V6 & V8 General Motors (GM) active or dynamic fuel management vehicles, includes cars, trucks & SUVs.
- Please check compatibility before purchasing.
- 🔌【2024 New Version——Keep V8 / V6 More Stable】AFM/DFM Disabler upgrade of chips and circuits. Enabling the engine to maintain a more stable operation in V8 V6 modes
- 🛠️【Safety & Keep Factory ECU】AFM Disabler no alterations have been made to the factory ECU, ensuring the safety and stability of your driving experience. The device only deactivates the vehicle's hidden AFM (active fuel management) DFM function (While Ford or Ram may have a built-in switch, models like GMC, Chevy, Cadillac, Buick... may not provide this switch)
- 🔋【Protect battery & Low-Power Eye-Care LED】The circuit of AFM Disabler utilizes low-power standby technology, minimizing the device's standby power consumption. The LED bulbs emit soft light, ensuring that even during extended nighttime drives, the eye-friendly indicators prevent eye fatigue
- ⚙️【Preserve Engine Lifter】The Engine Lifter plays a crucial role in Active Fuel Management, and its damage could lead to higher repair costs. We recommend using our device to turn off AFM function to extend the Lifter's lifespan
- ❤️【100% After-Sales Satisfaction】If you encounter any quality issues or are dissatisfied with our AFM Disabler upon receipt, you can initiate a return or exchange. Even if it's beyond the Amazon after-sales period, you can inform us of any issues through the purchase page, and we will promptly address your concerns
- 1.AFM/DFM Disabler Device RA003 Compatible with most GM V6 and V8 vehicles.
- 2.AFM RA003 keeps the vehicle in the V8 mode all the time,help your car get super power.
- 3. Plug and play, install without any tools.Please unplug the product,when you do not use this for a long time.
- 4. Keep the factory ECU, not programming the ECU of the vehicle, and does not affect other functions of the vehicle, but the modified vehicle is cautious to buy.
- 5. Please note: V8 mode will keep all the cylinder running, the water temperature may increase during driving. The product currently not compatible with 2019+ 5.3L 10-Speed or 6.2L 10-SPEED models.
- 🚀MAXIMIZE YOUR ENGINE'S POTENTIAL: Unleash the full power of your GM V6 or V8 vehicle with the DZFST.FI AFM Disabler. Say goodbye to the constraints of 4-cylinder mode and enjoy continuous full-cylinder performance, perfect for demanding driving scenarios requiring maximum torque.
- 🚀EFFORTLESS INSTALLATION: Experience seamless setup—simply plug the AFM Disabler into your vehicle's OBD-II port and feel the immediate difference. No complex reprogramming or warranty concerns.
- 🚀GUARANTEED COMPATIBILITY: Rest assured, the AFM Disabler is compatible with most GM V6 and V8 engines. However, always double-check compatibility, especially for specific models like the 2019+ Silverado and Sierra equipped with the 5.3L/3.6L engine and 10-speed transmission, or the 2022 Refresh truck and SUV models.
- 🚀INTUITIVE OPERATION: Stay informed about your vehicle's performance with the AFM Disabler's intuitive indicator lights, offering real-time feedback and peace of mind while driving. Remember to unplug the disabler if it won't be used for an extended period.
- 🚀DEDICATED SUPPORT: Our 24/7 customer service team is ready to assist you with any questions or concerns. Plus, take advantage of our generous one-year free return and exchange policy (non-man-made damage) for a worry-free shopping experience. Say farewell to the headaches caused by the AFM system, such as engine shaking and low-end torque inadequacy.
- Keeps your car in full cylinder mode all the time, no more shuddering or dropping cylinders.
- Compatible with V6 / V8 General Motors (GM) active or dynamic fuel management vehicles, includes cars, trucks, and SUVs.
- No installation required, simply plug into your onboard OBD-II port and it instantly begins working to eliminate the AFM/DFM system.
- NOT compatible with 2019+ Silverado and Sierra models equipped with 5.3L / 6.2L motors and 10-speed transmissions.
- Will not reprogrammed the factory ECU.
- This device is compatible with most GM V6 and V8 engine vehicles trucks,and parts of chevrolet cadillac buick holden pontiac saturn car vehicles
- This device will keep the vehicle in V8 mode all the time,keeping your car in full cylinder mode all the time, no more shuddering or dropping cylinders
- Plug the device in and it instantly begins working to disable the AFM DFM system,please unplug the device when you do not use the car for a long time
- It won't program the ECU of the vehicle, and won't affect other functions of the vehicle,but modified vehicles are cautious to buy
- Note: keeping V8 mode the water temperature maybe increase during driving, device is not compatible with 2019-on Silverado and Sierra models with 5.3L/ 6.2L engine and 10-speed transmissions
- 🚗【Enhanced Engine Performance】Our AFM Disabler deactivates Active Fuel Management (AFM) to enable your vehicle to operate on all cylinders at all times, ensuring a smoother and more consistent driving experience.
- 🚗【Compatible with a Wide Range of V6 & V8 General Motors Models】Designed to fit a variety of General Motors' V6 and V8 engines equipped with AFM technology, . Note: This AFM/DFM Disabler is NOT currently compatible with 2019+ Silverado and Sierra models equipped with 5.3L / 6.2L motors and 10-speed transmissions.
- 🚗【Easy Plug-and-Play Installation】Effortlessly upgrade your vehicle with our user-friendly design. Simply plug the AFM Disabler into your vehicle’s OBD-II port for an instant performance boost without the need for complex tools or professional assistance.
- 🚗【Maintains Vehicle Integrity】Enjoy the benefits of full engine power without compromising your vehicle’s factory settings. Our AFM disabler is non-invasive, fully reversible, and does not leave any trace once removed, preserving your vehicle’s warranty and resale value.
- 🚗【Reliable and Durable】Built with high-quality materials to ensure durability and longevity, our AFM Disabler is a reliable investment for your vehicle. Comes with dedicated customer support and a satisfaction guarantee to assist with any queries or concerns.
Last update on 2024-03-20 / Affiliate links / Images from Amazon Product Advertising API
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