Variant 1
ECU- Catalog engine
- 1600 131HP
- Controller brand
- MAGNETI MARELLI
- ECU
- IAW 7GFNZ HW400
- Stock power
- 131 HP
FIAT · IAW 7GFNZ HW400 ECU · petrol
FIAT SIENA IAW 7GFNZ HW400 tuning files
FIAT SIENA on the IAW 7GFNZ HW400: matched, calibrated and delivered with care. The matched variants sit between 127 and 131 HP from the factory. 2 distinct variants are catalogued here. Petrol calibration here is about crisp response and a result that holds up day to day. Each file is tied to the precise software on your car and checked before it goes out.
Available solutions
Applicable work for the IAW 7GFNZ HW400 on this petrol. The available set firms up once the exact engine and software are known.
Engine variants & ECU software
2 distinct variants for the FIAT SIENA on the IAW 7GFNZ HW400 ECU. Reference the engine and controller software when you upload.
Variant 2
ECU- Catalog engine
- 1600 127HP
- Controller brand
- MAGNETI MARELLI
- ECU
- IAW 7GFNZ HW400
- Stock power
- 127 HP
- ECU SW
- 3023ME11
- ECU HW
- 7GFNZ
Related vehicles
Other vehicles built on the IAW 7GFNZ HW400 controller or the same engine — handy when a platform spans several models and makes.
Questions, answered.
Which tuning solutions are available for the FIAT SIENA on the IAW 7GFNZ HW400?
Stage 1, Stage 2, Swirl Flaps Off, Lambda / O2, OPF/GPF Off. The exact set depends on the specific engine and software version.
Do you cover the IAW 7GFNZ HW400 ECU software on this model?
Yes — the FIAT SIENA on the IAW 7GFNZ HW400 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.