Mack AdBlue OFF Service / Mack Truck SCR Removal Software

Introduction
Mack trucks use the AdBlue (SCR) system to reduce emissions, but it often leads to high maintenance costs and operational failures. Many truck owners opt for AdBlue OFF via ECU remapping. This guide explains the process, benefits, and compatible Mack truck models.
The ECU Remapping Process for AdBlue Deactivation

Mack Trucks ECU Programming for AdBlue Deactivation:

For Mack trucks, the AdBlue OFF procedure involves these steps:
1.    Reading the ECU Data
2.    Modifying the Software
3.    Flashing the ECU
4.    Testing and Verification

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What is Mack trucks ACM and is it necessary to modify the ACM for AdBlue OFF For Mack trucks ?

Mack trucks have an ACM (Aftertreatment Control Module) that works alongside the ECU to manage the SCR system. In Mack trucks using TRW EMS 2.x ECUs, the ACM is manufactured by Continental. However, there is no need to modify the ACM; AdBlue can be deleted by remapping the ECU alone.
 

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How to Read and Write TRW  Mack ECU?

We use KTAG Master for the reading and writing process. Follow these steps:

1.    Select Mack Truck, Euro 5, MP7/MP8/MP10 and choose service mode.
2.    Use cable 144300T115 to connect to the ECU and 144300TALI as a power supply cable.
3.    Disconnect the ECU connector and attach the 144300T115 cable.
4.    KTAG will identify the ECU automatically and allow you to read data via the Read Backup function.
5.    Save the extracted ECU file and create a backup before making modifications.
6.    Modify the ECU data using WinOLS software.

Note: KTAG corrects checksum automatically during the writing process, so you don’t need to worry about checksum correction.

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How to AdBlue Delete for Mack in WinOLS software?

Once the ECU file is opened in WinOLS, modifications must be made to disable AdBlue. However, there is no universal method, as every ECU has unique software structures. To accurately locate the necessary values, an A2L/Damos file is required.
If you want to learn how to disable AdBlue for Mack TRW EMS ECUs, we offer an AdBlue OFF training course, covering SCR system removal using Swiftec and WinOLS.

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Mack Trucks AdBlue Delete Online File Service

 

click here for Download Mack AdBlue OFF file service 

By following the reading instructions above, you can extract the original ECU file using KESS3, KTAG, or other tuning tools. Once you obtain the ECU file:
•    Send the file to our Tuning File Service.
•    Our experts will modify the file for AdBlue OFF within 10 minutes.
•    You will receive a remapped file ready to be flashed back to the ECU.
•    Our files are tested and guaranteed, ensuring no limp mode or DTC errors.

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Download AdBlue OFF File for Mack

If you lack the time or expertise to modify the ECU file yourself, our Tuning File Service provides pre-mapped solutions. Simply upload your original ECU file and receive a fully optimized AdBlue OFF file for:
•    AdBlue Delete (SCR OFF)
•    DPF OFF
•    EGR OFF
•    DTC OFF
•    ECU Performance Tuning

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Compatible Mack Trucks for AdBlue Delete :

Brand Name, Type	Engine	ECU Installed
Mack MP7 Euro-4-5	10.8TDI 315-410hp	TRW EMS2-2.2/ACM
Mack MP8 Euro-4-5	12.8TDI E5 460-520hp	TRW EMS2.2/ACM
Mack MP10 Euro-4-5	16.1TDI E5 550-700hp	TRW EMS2.2/ACM
Mack MP7 Euro-6	10.8TDI D11 345-400hp	TRW EMS2.3/ACM
Mack MP8 Euro-6	12.8TDI E6 420-520hp	TRW EMS2.3/ACM
Mack MP8 Euro-6 2019+	12.8TDI E6 420-520hp	TRW EMS2.4/ACM

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Differences Between  Mack TRW EMS Versions :

EMS Version	Emission Standard	Used In	Key Differences
EMS2.0	Euro 3 / Early Euro 4	Older Mack	Basic engine control, no AdBlue support
EMS2.2	Euro 4 / Euro 5	Mack MP7/MP8/MP10	Introduced SCR (AdBlue) & ACM support
EMS2.3	Euro 6	Mack MP8	Improved NOx control, DPF management, more sensors
EMS2.4	Euro 6 (Latest Gen)	Newer Mack MP8,MP10	More efficient AdBlue injection, better diagnostics

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Advantage of Disabling the  Mack AdBlue System :

Truck owners who choose to deactivate the AdBlue system experience several advantages:
•    Lower Operating Costs: Eliminates the need for AdBlue fluid, reducing expenses for large fleets.
•    Fewer Downtime Issues: Prevents engine derates and shutdowns due to AdBlue system failures.
•    Improved Fuel Efficiency: Some drivers report better fuel consumption after AdBlue removal.
•    Increased Engine Reliability: Eliminates SCR-related faults, reducing error codes and sensor failures.
•    Optimized Performance in Extreme Conditions: Trucks operate better in cold or remote areas without AdBlue freezing concerns.

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Is There Any Check Engine Light After Mack AdBlue OFF?

Our AdBlue delete service includes clearing related DTC codes, such as P20E8, P207F, P204F, P203B, P20EE, P229F, P2BA9, P204C, P2200, and P2047. We ensure that the vehicle does not enter limp mode and operates without fault codes.

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Is AdBlue Deactivation Legal?

Many countries have strict emissions regulations, and tampering with emissions control systems may result in fines or penalties. This modification is recommended for off-road or export vehicles only. Truck owners should consult local regulations before proceeding.

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Conclusion
ECU remapping for AdBlue deactivation is a reliable solution for Mack trucks facing frequent SCR system issues. By modifying the ECU software, truck owners can eliminate the need for AdBlue while ensuring optimal performance. However, legal considerations must be taken into account before proceeding. For professional AdBlue OFF tuning, always seek experienced technicians to guarantee safe and efficient modifications.
 

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