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Project #25345

8F2 - 8F3 - 8DF MJ8F3HW1F 55246936 8F3.D332 2442D330

FIAT - ALFA - JEEP Car Diesel STAGE1 + VMAX + HARDCUT + DTC OFF ✓ Completed Oct 24, 2026

Vehicle & ECU

ECU8F2 - 8F3 - 8DF
Brand groupFIAT - ALFA - JEEP
Vehicle typeCar
FuelDiesel
File size2.00 MB 2,097,152 bytes
Completed
Automated processing≈ 30 min
Status✓ Completed & delivered
Original fileFiat_Doblo_2006_1.3_Mjet_75_hp_Marelli_MJD8F3_OBD_NR.bin
Stock fileUploaded file was already modified (not a stock read)

ECM Titanium

Driver · Vehicle · ECU500_305D · FIAT 500 · MJ8F3

Software identification 4

Software numberMJ8F3HW1F
Version / upgrade55246936
Identifier 28F3.D332
Identifier 32442D330

Operations performed 4

  1. STAGE1 automated · solution rev 3 · ~15 min

    A performance tune that needs no mechanical changes and stays within the factory safety limits.

  2. VMAX automated · solution rev 13 · ~5 min

    Removes the speed limiter (Vmax) or sets it to the desired value.

  3. HARDCUT automated · instant

    Sets the engine hardcut (rev cut) point.

    • Rpm4,100 rpm
  4. DTC OFF automated · solution rev 1 · ~10 min

    Permanently disables the fault codes (DTC) you select; you need to provide the P codes to turn off.

    • P0069Manifold Absolute Pressure - Barometric Pressure Correlation
    • P0087Fuel Rail/System Pressure - Too Low
    • P0089Fuel Pressure Regulator 1 Performance
    • P0090Fuel Pressure Regulator 1 Control Circuit
    • P0095Intake Air Temperature Sensor 2 Circuit
    • P0096Intake Air Temperature Sensor 2 Circuit Range/Performance
    • P0100Mass or Volume Air Flow Circuit
    • P0190Fuel Rail Pressure Sensor Circuit
    • P0380Glow Plug/Heater Circuit "A"
    • P0504Brake Switch "A"/"B" Correlation
    • P0530A/C Refrigerant Pressure Sensor "A" Circuit
    • P0641Sensor Reference Voltage "A" Circuit/Open
    • P0645A/C Clutch Relay Control Circuit
    • P0670Glow Plug Module Control Circuit
    • P0671Cylinder 1 Glow Plug Circuit
    • P0672Cylinder 2 Glow Plug Circuit
    • P0673Cylinder 3 Glow Plug Circuit
    • P0674Cylinder 4 Glow Plug Circuit
    • P0704Clutch Switch Input Circuit Malfunction
    • P1612Time-out instrument cluster
    • P2264Water in Fuel Sensor Circuit

Other solutions for this ECU 14

Every operation below can be ordered for the same 8F2 - 8F3 - 8DF file (diesel). Prices are per file in EUR; automatic solutions are delivered within minutes, engineer-assisted ones are prepared by our tuning team.

STAGE1 A performance tune that needs no mechanical changes and stays within the factory safety limits. done in this project ✓
STAGE2 A performance tune for vehicles with hardware upgrades such as a downpipe, intercooler or intake; DPF/EGR delete is a separate operation. automatic, 5 ready solutions for this file size · ~60 min 40 EUR
STAGE3 A performance tune built from data logs after vehicle-specific hardware upgrades. engineer-assisted, on request · ~180 min 200 EUR
DPF OFF Deletes the diesel particulate filter (DPF) system in software; if the DPF and AdBlue (SCR) share one housing, AdBlue must be deleted as well. automatic, 32 ready solutions for this file size · ~5 min 10 EUR
EGR OFF Disables the exhaust gas recirculation (EGR) system. automatic, 26 ready solutions for this file size · ~5 min 10 EUR
LAMBDA OFF Disables the oxygen (lambda) sensors. automatic, 19 ready solutions for this file size · ~5 min 10 EUR
VMAX Removes the speed limiter (Vmax) or sets it to the desired value. done in this project ✓
TVA OFF Disables the diesel throttle valve. automatic, 11 ready solutions for this file size · ~5 min 10 EUR
FLAPS OFF Disables the swirl flaps in the intake manifold. engineer-assisted, on request · ~5 min 10 EUR
MAF OFF Disables the mass air flow (MAF) sensor. automatic, 10 ready solutions for this file size · ~10 min 30 EUR
STARTSTOP OFF Permanently disables the Start/Stop system. automatic, 2 ready solutions for this file size · ~20 min 40 EUR
IMMO OFF Disables the immobilizer system so the vehicle can start and run. automatic, 3 ready solutions for this file size · ~180 min 50 EUR
THERMOSTAT Adjusts the operating temperature in software on vehicles with an electronic thermostat. engineer-assisted, on request · ~20 min 20 EUR
HOT START Fixes the rough/delayed starting issue (hot start) that occurs when the engine is hot. automatic, instant 20 EUR
HARDCUT Sets the engine hardcut (rev cut) point. done in this project ✓
DTC OFF Permanently disables the fault codes (DTC) you select; you need to provide the P codes to turn off. done in this project ✓
CHECKSUM Automatically calculates and corrects your modified file’s checksum; if your tool cannot do checksums, we do it for you. automatic, instant 10 EUR
REV ORI Restores your modified software file to its original factory state. engineer-assisted, on request · ~120 min 10 EUR
Have a 8F2 - 8F3 - 8DF file? Sign in to the ECUHARD platform, upload it and pick the operations — automatic solutions are ready in minutes, 24/7, invoice issued automatically.
Sign in & upload your file →

About this project

Magneti Marelli 6x/8x/9x series are Fiat group petrol/diesel ECUs. This unit is fitted to FIAT - ALFA - JEEP Car vehicles. Project #25345 was completed automatically by the ECUHARD file service for a FIAT - ALFA - JEEP Car vehicle running software MJ8F3HW1F 55246936 8F3.D332 2442D330. Disabled fault codes: P0069, P0087, P0089, P0090, P0095, P0096, P0100, P0190, P0380, P0504, P0530, P0641, P0645, P0670, P0671, P0672, P0673, P0674, P0704, P1612, P2264.

Frequently asked questions

What was done to this 8F2 - 8F3 - 8DF file?

Operations performed: STAGE1, VMAX, HARDCUT, DTC OFF. The modified file was checksum-corrected and delivered ready to flash.

Which fault codes (DTC) were disabled?

P0069 (Manifold Absolute Pressure - Barometric Pressure Correlation); P0087 (Fuel Rail/System Pressure - Too Low); P0089 (Fuel Pressure Regulator 1 Performance); P0090 (Fuel Pressure Regulator 1 Control Circuit); P0095 (Intake Air Temperature Sensor 2 Circuit); P0096 (Intake Air Temperature Sensor 2 Circuit Range/Performance); P0100 (Mass or Volume Air Flow Circuit); P0190 (Fuel Rail Pressure Sensor Circuit); P0380 (Glow Plug/Heater Circuit "A"); P0504 (Brake Switch "A"/"B" Correlation); P0530 (A/C Refrigerant Pressure Sensor "A" Circuit); P0641 (Sensor Reference Voltage "A" Circuit/Open); P0645 (A/C Clutch Relay Control Circuit); P0670 (Glow Plug Module Control Circuit); P0671 (Cylinder 1 Glow Plug Circuit); P0672 (Cylinder 2 Glow Plug Circuit); P0673 (Cylinder 3 Glow Plug Circuit); P0674 (Cylinder 4 Glow Plug Circuit); P0704 (Clutch Switch Input Circuit Malfunction); P1612 (Time-out instrument cluster); P2264 (Water in Fuel Sensor Circuit). Each code is switched off in the ECU fault table, so it is no longer stored or shown by diagnostic tools.

What settings were used for HARDCUT?

Rpm: 4,100 rpm.

What is the software version for this 8F2 - 8F3 - 8DF file?

This project is for 8F2 - 8F3 - 8DF with software numbers: MJ8F3HW1F 55246936, 8F3.D332, 2442D330. The same operations apply to other vehicles running the same software.

Can I get the same tuning for my FIAT - ALFA - JEEP?

Yes. Sign in, upload your original ECU file (8F2 - 8F3 - 8DF or any supported ECU), choose the operations you need and our automated system prepares the file, usually within minutes, 24/7.

I read my ECU with a different tool — will the tuning fit my file?

Yes. Every operation is applied to the file you upload — your own read from your own car — so the tool and the read mode do not matter: the modifications are located by content, not by a fixed file layout. If your file was modified before, our REV ORI (revert to original) module repairs every changed area back to the stock values first — no matter which tool or method read it (KTAG, KESS, Flex, Autotuner, CMD, OBD, bench or boot) (10 EUR). A compatibility problem is therefore impossible.

I have an OBD read — can you tune it, or do I need a bench/boot read?

An OBD read is fine as long as it contains the software area (maps). Upload it; the platform detects the ECU and software number and shows which operations are available for your file. If the read is partial and an operation is not possible on it, you will see that before paying.

I read boot mode with KTAG / bench with Flex / bench or OBD with Autotuner — which read do I upload?

Any of them. Upload the file exactly as your tool saved it (8F2 - 8F3 - 8DF reads are supported in OBD, bench and boot form). The system works on your own read, so nothing has to be converted or matched to a different device.

Do you need the full backup (EEPROM, other sectors)?

No. Only the software-related part of the ECU is used: the maps area — the internal flash and/or the external flash, depending on where the software lives in that ECU. EEPROM and other memory sectors are not needed and are never modified. Keep your full backup for yourself as a safety copy.

How can I be sure the result will be compatible with my ECU?

Because the file returned to you is your own read with only the selected areas changed and the checksum corrected, it flashes back with the same tool and method you used to read it. The software number stays the same; nothing else in the file is touched.

What other operations are available for 8F2 - 8F3 - 8DF?

STAGE2 (40 EUR, automatic, 5 ready solutions for this file size); STAGE3 (200 EUR, engineer-assisted, on request); DPF OFF (10 EUR, automatic, 32 ready solutions for this file size); EGR OFF (10 EUR, automatic, 26 ready solutions for this file size); LAMBDA OFF (10 EUR, automatic, 19 ready solutions for this file size); TVA OFF (10 EUR, automatic, 11 ready solutions for this file size); FLAPS OFF (10 EUR, engineer-assisted, on request); MAF OFF (30 EUR, automatic, 10 ready solutions for this file size); STARTSTOP OFF (40 EUR, automatic, 2 ready solutions for this file size); IMMO OFF (50 EUR, automatic, 3 ready solutions for this file size); THERMOSTAT (20 EUR, engineer-assisted, on request); HOT START (20 EUR, automatic, instant); CHECKSUM (10 EUR, automatic, instant); REV ORI (10 EUR, engineer-assisted, on request). Prices are per file.

I have a 8F2 - 8F3 - 8DF file — how can I get it done?

Sign in to the ECUHARD platform (solutions.ecuhard.com), upload your ECU file, select the operations you need and confirm. Automatic solutions are delivered within minutes, 24/7; engineer-assisted operations are prepared by our tuning team. Each file is checksum-corrected and an invoice is issued automatically.

Is there an ECM Titanium driver for this 8F2 - 8F3 - 8DF file?

Yes. The file is linked to ECM Titanium driver 500_305D (FIAT 500). Matched: the software range is identical to the driver reference. The driver tells the software where the maps of this ECU software are, so tools that use ECM drivers, including the ECUHARD Tuning Editor, can open the maps automatically.

Do I need to send my original file?

Yes — upload the stock read of your ECU. If you do not have it, our original file archive may have a matching file by software number.