Mack Trucks ECU Tuning Files

Mack trucks such as the Anthem, Pinnacle, Granite and TerraPro are a common sight in North American heavy-haul and vocational fleets. For Mack, our file service covers the TRW EMS family: EMS2.0, EMS2.2, EMS2.3 and EMS2.4. You read the original file with your own tool and upload it, and you get back a modified file built for that exact software. Services include Stage 1 for the engine ECM, DPF, EGR and AdBlue/SCR/NOx solutions, full emission removal and DTC removal.

From EMS2.2 onward, aftertreatment is handled by a separate ACM (aftertreatment control module), so emission work involves the ACM file as well as the ECM file. On EMS2.2, AdBlue/SCR/NOx removal is listed for both units; on EMS2.3 and EMS2.4, emission work is listed as Full Emission Removal. The automatic analysis confirms exactly which modules are available once your file is uploaded. Emission-related modules are intended for off-road, motorsport or export use where local rules allow.

Mack ECUs and supported services

7 Mack control units are supported. Each row lists the modules available for that unit.

ECUSupported services
TRW EMS2.0 - ECMStage 1, AdBlue / SCR / NOx Off, DPF Off, EGR Off, DTC Off
TRW EMS2.2 - ACMAdBlue / SCR / NOx Off, DTC Off
TRW EMS2.2 - ECMStage 1, AdBlue / SCR / NOx Off, DPF Off, EGR Off, Full emission off (DPF + EGR + SCR), DTC Off
TRW EMS2.3 - ACMFull emission off (DPF + EGR + SCR), DTC Off
TRW EMS2.3 - ECMStage 1, EGR Off, Full emission off (DPF + EGR + SCR), DTC Off
TRW EMS2.4 - ACMFull emission off (DPF + EGR + SCR), DTC Off
TRW EMS2.4 - ECMStage 1, EGR Off, Full emission off (DPF + EGR + SCR), DTC Off

The exact module availability for your vehicle is confirmed by the automatic analysis after you upload the original ECU file.

Modifications that disable emission control equipment are intended for off-road, motorsport or export use. Removing or disabling such equipment may not be legal for road use in many countries; checking local regulations is the vehicle owner’s responsibility.

Frequently asked questions

Which ECUs does Mack Trucks use?

We support Mack files from TRW EMS2.0, EMS2.2, EMS2.3 and EMS2.4. EMS2.0 is listed as an engine ECM only; from EMS2.2 onward, each generation is listed as two units, the engine ECM and the aftertreatment ACM. Upload the file you read, and the automatic analysis identifies the ECU and software, then shows which modules are available for it.

Is AdBlue Off possible on Mack EMS2.3?

EMS2.3 has no separate AdBlue/SCR/NOx module in our list. On this generation the SCR system sits on the separate ACM, and emission work is listed as Full Emission Removal on both the ACM and the ECM, with DTC removal on both. The EMS2.3 ECM also supports EGR removal and Stage 1. Upload the ECM and ACM files you have read, and the automatic analysis confirms which modules apply to your software.

Is Stage 1 available for Mack Truck ECUs?

Stage 1 is listed for the engine ECM on EMS2.0, EMS2.2, EMS2.3 and EMS2.4. The ACM units handle aftertreatment only, so they carry emission and DTC modules rather than Stage 1. DPF removal is listed for the EMS2.0 and EMS2.2 ECM, and EGR removal for every ECM generation in the table.

Is DPF off available for Mack?

DPF off is supported on: TRW EMS2.0 - ECM and TRW EMS2.2 - ECM. Euro 3–5 vehicles without a particulate filter do not need this module.

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