Marelli MJD6 calibration — Magneti Marelli ECU — the Italian FCA platform (Fiat/Alfa/Lancia, Multijet diesels and JTDM petrols). Supported: Stage 1/2 — power tuning, software removal of the diesel particulate filter / EGR / catalyst control, disabling the intake flaps, speed limit removal and DTC removal, return to stock on 38 modifications on Fiat, Opel, Lancia and 2 more brands. Reading via KESS3 / KTAG / Autotuner / MagicMotorSport.
The Marelli MJD6 is used across 5 brands: Fiat (20), Opel (11), Lancia (5), Alfa Romeo (1), Suzuki (1). 38 engines in total in the database.
The Marelli MJD6 ECU supports: STAGE 1, LAMBDA OFF, DPF OFF, STAGE 2, EGR OFF, DTC OFF, VMAX OFF, FLAPS OFF, ECO TUNING, TVA OFF. Checksums are recalculated on the engineer's side in WinOLS5.
The Marelli MJD6 is supported by: KESS3, Autotuner, MPPS, KTAG, CMD Flash, Trasdata, MagicMotorSport. On production models OBD reading is usually enough; on locked variants — Bench (BDM/JTAG).
Stage 1 on the diesel Marelli MJD6 reprograms rail pressure target, SOI/EOI timing, boost target, smoke limiter and torque limiter. The torque gain is noticeable; the HP gain depends on the specific engine.
Marelli MJD6 calibration requires a full read of the unit — bin/hex/ori. Programmers: KESS3 / Autotuner / CMD Flash / FGTech Galletto. Checksums — on the engineer's side.
Reading and writing over OBD take 25-30 minutes. Bench reading requires opening the unit — about 60 minutes. Remote processing of a Marelli MJD6 file at CHIPOK — 5-30 minutes.
The price of Marelli MJD6 calibration depends on the selected options: Stage 1/2, DPF/EGR/AdBlue off, DTC off. The Max Price cap limits the package total. Paid with CHIPOK credits (1 cr = 1 €).