FORD · 4S41BA ECU · diesel

FORD FOCUS 4S41BA tuning files

Here is what the catalog holds for the FORD FOCUS on the 4S41BA. Stock output across the matched variants spans 75–75 HP. It is a diesel platform, so the full diesel solution range is on the table. Each file is tied to the precise software on your car and checked before it goes out.

Available solutions

Applicable work for the 4S41BA on this diesel. The available set firms up once the exact engine and software are known.

Stage 1Stage 2DPF OffEGR OffSwirl Flaps OffLambda / O2MAF OffTVANOx OffAGSReadinessStart/Stop OffOil PressureLimp Mode Off

Engine variants & ECU software

1 distinct variant for the FORD FOCUS on the 4S41BA ECU. Reference the engine and controller software when you upload.

Variant 1

ECU
Catalog engine
1800 TDCI 75HP
Controller brand
FORD
ECU
4S41BA
Stock power
75 HP

Related vehicles

Other vehicles built on the 4S41BA controller or the same engine — handy when a platform spans several models and makes.

Questions, answered.

Which tuning solutions are available for the FORD FOCUS on the 4S41BA?

Stage 1, Stage 2, DPF Off, EGR Off, Swirl Flaps Off, Lambda / O2, MAF Off, TVA, NOx Off, AGS, Readiness, Start/Stop Off, Oil Pressure, Limp Mode Off. The exact set depends on the specific engine and software version.

Do you cover the 4S41BA ECU software on this model?

Yes — the FORD FOCUS on the 4S41BA ECU is part of the catalog. Upload your original file and it is matched to the right calibration before any work is done.

How is the file delivered?

Through the TuningBay workflow with operator validation and one safe, sensible result per job. Files we deliver, we stand behind.

FORD FOCUS 4S41BA ECU Tuning Files | TuningBay