Engine ECU 51879338 (MJD8F2.G1) – description
On this page you can buy ECU 51879338, a Magneti Marelli MJD 8F2.G1 unit intended for the Fiat Punto 1.3 Multijet. It goes through a function test before dispatch.
Part number and ECU type
The part number on the label is what matters most when ordering:
- Part number: 51879338
- ECU type: Magneti Marelli MJD 8F2.G1 / MJD8F2.G1
Does this ECU fit your car?
This unit comes from a Fiat Punto 1.3 Multijet. The model and year alone are not enough. Look at the label of your ECU: if it shows number 51879338 and type MJD 8F2.G1, it is the same version. A different part number is a different ECU.
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.
- Paid options on request: EGR OFF and DPF OFF.
Virgin or IMMO OFF
- Virgin – Plug & Play: after fitting, the ECU codes itself to the car and immobiliser, no programming needed. Condition: matching part number and a working immobiliser.
- IMMO OFF on request: the car runs correctly, but a red immobiliser warning appears on the dashboard and a fault is stored in diagnostics that cannot be cleared without pairing with the immobiliser. The Virgin version does not have this fault.
Symptoms that may point to an ECU failure
- Diagnostics cannot connect to the ECU.
- The engine will not fire, the injectors get no signal.
- The fault appeared after water got in or after a short in the harness.
- The ECU has no power despite working fuses.
The cause may also be the wiring, the power supply or a sensor. Diagnose first, then buy.
If your ECU has a different part number, check 51880758 MJD 8F2.G4, 51871703 MJD 8F2.A3, 51880760 MJD 8F2.F4, 51879337 MJD 8F2.D2 or the whole Fiat engine ECU category. About the manufacturer: FPT.
Frequently asked questions about ECU 51879338 MJD 8F2.G1
Does ECU 51879338 fit my car?
Check the label of your ECU: part number 51879338 and marking MJD 8F2.G1. If the numbers match, the ECU fits – the car model alone does not decide this.
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Should I choose Virgin or IMMO OFF?
We recommend Virgin. IMMO OFF lets you drive, but leaves a red immobiliser warning on the dashboard and a fault in diagnostics that you cannot clear without pairing with the immobiliser.
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Can I order extra services for ECU 51879338?
Yes, for an extra charge we carry out EGR OFF and DPF OFF. These options are done on request before dispatch.
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What is the warranty on ECU 51879338?
The warranty is 6 months. Before dispatch, the ECU passes a bench test and a test in our test car.
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