Engine ECU 51908938 (MJD8F3.S2) – description
On this page you can buy ECU 51908938, a Magneti Marelli MJD 8F3.S2 unit intended for the Fiat Strada 1.3 Multijet. It goes through a function test before dispatch.
Vehicle compatibility
This ECU was removed from a Fiat Strada 1.3 Multijet. Compatibility is decided by the part number on the label, not just by the model and year – compare number 51908938 and marking MJD 8F3.S2 with your ECU. A different part number means a different ECU version.
Numbers to compare with your label
The housing of the original ECU carries a sticker with its numbers. On this unit they are:
- Part number: 51908938
- ECU type: Magneti Marelli MJD 8F3.S2 / MJD8F3.S2
Fitting without programming
Virgin Plug & Play means that once connected, the ECU adapts itself to the car and immobiliser. Two things are needed: the same part number (51908938) and a working immobiliser.
The IMMO OFF version is available on request, but it leaves a red immobiliser warning on the dashboard and a fault in diagnostics that cannot be removed without pairing with the immobiliser. Virgin has no such fault.
Possible symptoms of a faulty ECU
- the engine does not start, no injector control,
- no communication with the ECU during diagnostics,
- no power supply to the ECU although the fuses are fine,
- failure after water ingress or a short circuit in the wiring.
These symptoms can also have other causes – wiring, power supply or sensors. Run a diagnosis before buying.
Warranty and extra services
The ECU comes with a warranty of 6 months. Every unit passes a bench test and a test in our test car.
- Cloning included: instead of the Virgin version we can transfer the data from your old ECU – the data from your current unit is required.
- Paid options on request: chip tuning, EGR OFF and DPF OFF.
More units in the Fiat engine ECU category and on the FPT manufacturer page.
Similar numbers from this family: 55255943 MJD 8F3.X3, 51908941 MJD 8F3.Q3, 55261314 MJD 8F3.X3, 55259329 MJD 8F3.C3.
FAQ: 51908938 (MJD 8F3.S2)
Is it enough to just fit ECU 51908938?
Yes, if the part number matches and the immobiliser works. After fitting, the Virgin version codes itself to the car and immobiliser, with no programming.
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Do you offer chip tuning, EGR OFF and DPF OFF for this ECU?
Yes, these are paid extra options that we carry out on request before the ECU is shipped.
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How do you test ECU 51908938?
We check every unit on the bench and then fit it to our test car. The warranty is 6 months.
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Can I clone my old ECU instead of the Virgin version?
Yes, cloning is included in the price of ECU 51908938. We need the data from your current unit.
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