FIAT · MJ9DF ECU · diesel

FIAT 500 MJ9DF tuning files

The FIAT 500 on the MJ9DF, mapped from stock file to finished result. The matched variants sit between 95 and 95 HP from the factory. It is a diesel platform, so the full diesel solution range is on the table. We match the right calibration to your exact software and validate it before delivery.

Upload your file →All 500 coverage

Available solutions

What we can run on the MJ9DF for this diesel — the precise options narrow down by engine and software version.

Stage 1 Stage 2 DPF Off EGR Off Swirl Flaps OffLambda / O2MAF OffTVANOx OffAGSReadinessStart/Stop OffOil PressureLimp Mode Off

Engine variants & ECU software

38 distinct variants for the FIAT 500 on the MJ9DF ECU. Reference the engine and controller software when you upload.

Variant 1

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42D326
Calibration: 4F42D326

Variant 2

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42B230
Calibration: 4F42B230

Variant 3

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42D528
Calibration: 4F42D528

Variant 4

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42P230
Calibration: 4F42P230

Variant 5

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42F425
Calibration: 4F42F425

Variant 6

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42M125
Calibration: 4F42M125

Variant 7

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42X125
Calibration: 4F42X125

Variant 8

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42B226
Calibration: 4F42B226

Variant 9

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42B228
Calibration: 4F42B228

Variant 10

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4E45
ECU HW: MJ9DFHW000
SW upgrade: 4E45B220
Calibration: 4E45B220

Variant 11

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42F328
Calibration: 4F42F328

Variant 12

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42P530
Calibration: 4F42P530

Variant 13

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42P630
Calibration: 4F42P630

Variant 14

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4G41
ECU HW: MJ9DFHW000
SW upgrade: 4G41X223
Calibration: 4G41X223

Variant 15

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42P126
Calibration: 4F42P126

Variant 16

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4G41
ECU HW: MJ9DFHW000
SW upgrade: 4G41X230
Calibration: 4G41X230

Variant 17

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42F528
Calibration: 4F42F528

Variant 18

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4E45
ECU HW: MJ9DFHW000
SW upgrade: 4E45D525
Calibration: 4E45D525

Variant 19

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4E45
ECU HW: MJ9DFHW000
SW upgrade: 4E45D325
Calibration: 4E45D325

Variant 20

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4E45
ECU HW: MJ9DFHW000
SW upgrade: 4E45D125
Calibration: 4E45D125

Variant 21

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42P228
Calibration: 4F42P228

Variant 22

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42D328
Calibration: 4F42D328

Variant 23

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42D324
Calibration: 4F42D324

Variant 24

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42F225
Calibration: 4F42F225

Variant 25

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42D128
Calibration: 4F42D128

Variant 26

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42Y230
Calibration: 4F42Y230

Variant 27

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42F426
Calibration: 4F42F426

Variant 28

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42M225
Calibration: 4F42M225

Variant 29

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42G128
Calibration: 4F42G128

Variant 30

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42F526
Calibration: 4F42F526

Variant 31

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42F128
Calibration: 4F42F128

Variant 32

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42P626
Calibration: 4F42P626

Variant 33

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42P430
Calibration: 4F42P430

Variant 34

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42P128
Calibration: 4F42P128

Variant 35

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42P130
Calibration: 4F42P130

Variant 36

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42X130
Calibration: 4F42X130

Variant 37

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42Y130
Calibration: 4F42Y130

Variant 38

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 4F42
ECU HW: MJ9DFHW000
SW upgrade: 4F42P728
Calibration: 4F42P728

Related vehicles

Other vehicles built on the MJ9DF controller or the same engine — handy when a platform spans several models and makes.

Questions, answered.

Which tuning solutions are available for the FIAT 500 on the MJ9DF?

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 MJ9DF ECU software on this model?

Yes — the FIAT 500 on the MJ9DF 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.