Truck & Bus · Scania

Scania S Series Tractor Unit Tuning and Power Upgrade

Name: Scania S Series Tractor Unit Tuning and Power Upgrade
Brand: Scania

The Scania S Series is Scania's long-haul tractor unit range. The engine control unit (ECU) software is recalibrated on the vehicle's own original file; the original software is backed up.

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Scania S Series power remap

A power remap on the Scania S Series recalibrates the fuel quantity, injection timing, boost pressure and torque limiter maps. On a tractor unit, efficiency is decided by the speed and gear held on a gradient with a loaded trailer; with more torque in reserve there is less downshifting on hills and the engine runs at lower revs. The calibration stays within the safety margin of the engine and driveline.

Scania S Series DPF, EGR and AdBlue fault solution

On long-haul vehicles most complaints come from the emission systems: NOx sensor, pump and heater faults in the AdBlue (SCR) system, a blocked particulate filter (DPF) and EGR faults. With these faults the vehicle goes into reduced-power mode and the trip is interrupted. The source of the fault is diagnosed first; the software solution is applied according to the ECU type.

Truck DPF Fault Solution Truck EGR Fault Solution Truck AdBlue Fault Solution

ECU and compatibility for the Scania S Series

Services with a verified solution for Scania in our library: Stage 1 Remap, DPF Delete, EGR Delete and AdBlue / SCR Delete. The control units we work on in Scania vehicles include CONTINENTAL EMD1, CONTINENTAL EMS S7, MOTOROLA EMS S6 and CONTINENTAL EMS S8. The same model can carry a different ECU depending on build year and engine option, so we confirm compatibility for the Scania S Series from a photo of the ECU label or from the file read out.

Where is the difference noticed on the Scania S Series?

Long gradients with a loaded trailer
Motorway overtaking and cruise control
Heavy and bulky loads
Long trips where fuel cost is decisive

Services available for Scania (tractor unit)

Stage 1 Remap

Software that optimises the engine's power and torque maps within safe limits.

DPF Delete

Software deactivation of the diesel particulate filter (DPF/FAP) functions and fault codes.

EGR Delete

Software deactivation of the exhaust gas recirculation (EGR) valve control and fault codes.

AdBlue / SCR Delete

Software deactivation of the AdBlue/SCR dosing system and its fault/warning functions.

ECU models used in Scania trucks

CONTINENTAL EMD1 CONTINENTAL EMS S7 MOTOROLA EMS S6 CONTINENTAL EMS S8 SCANIA EEC3 EMS8

Frequently asked questions

Which software services are available for the Scania S Series?

Services with a verified solution for Scania in our library: Stage 1 Remap, DPF Delete, EGR Delete and AdBlue / SCR Delete. We confirm on the file which of them apply to the ECU fitted to your Scania S Series.

How much power does the Scania S Series gain with a remap?

The gain depends on the engine option, the ECU type and the vehicle's power level within its range. Rather than quote a fixed figure, we read the original file first and tell you what increase is possible.

How do I find out which ECU my Scania S Series has?

The exact type is read from the label on the ECU or with a diagnostic tool. A photo of the label and the model year of the vehicle are enough.

How long does the job take, and can it be done on site?

Most ECUs are read and written through the diagnostic socket and the job is completed the same day; some units are removed and worked on the bench. Contact us for on-site service.

Can the original software be restored?

Yes. The original software is archived and the Scania S Series can be returned to its factory setting on request.

Why does the vehicle cut power and limit speed when there is an AdBlue fault?

When the emission system detects a fault, the ECU first gives a warning; if the fault is not fixed it reduces torque, and at the next stage it limits the vehicle speed. This is how the system is designed to behave. Power returns once the cause is fixed or a software solution matching the ECU type is applied.

Why does DPF regeneration not complete?

Regeneration needs the exhaust temperature to stay high for a while; city distribution, frequent stop-start and long idling do not provide that. Faults in the differential pressure sensor, the EGR or the injectors also stop regeneration. The soot load and sensor values are read first; depending on the cause we recommend a forced regeneration, cleaning or a software solution.

Does the EGR job give the vehicle more power?

The EGR job is not a power remap; no power gain should be expected from it alone. Because the loss of pull and the power reduction caused by a faulty EGR disappear, the vehicle returns to its factory output. If more power is wanted, a Stage 1 remap is applied separately.

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