Engine ECU 55261314 (MJD8F3.X3) – description
On this page you can buy ECU 55261314, a Magneti Marelli MJD 8F3.X3 unit intended for the Fiat 500 1.3 Multijet. It goes through a function test before dispatch.
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.
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: 55261314
- ECU type: Magneti Marelli MJD 8F3.X3 / MJD8F3.X3
Does this ECU fit your car?
This ECU was removed from a Fiat 500 1.3 Multijet. The model and year alone are not enough. Look at the label of your ECU: if it shows number 55261314 and type MJD 8F3.X3, it is the same version. A different part number is a different ECU.
What we check before dispatch
We first test ECU 55261314 on the bench and then fit it to our test car. Only a working unit is shipped. For an extra charge we carry out EGR OFF and DPF OFF. The warranty is 6 months.
Useful links
FAQ: 55261314 (MJD 8F3.X3)
Does ECU 55261314 fit my car?
Check the label of your ECU: part number 55261314 and marking MJD 8F3.X3. If the numbers match, the ECU fits – the car model alone does not decide this.
|
Does the Virgin MJD 8F3.X3 need programming?
No. After fitting, ECU 55261314 codes itself to the car and immobiliser. The condition is a working immobiliser and a matching part number.
|
Do you offer 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.
|
How do you test ECU 55261314?
We check every unit on the bench and then fit it to our test car. The warranty is 6 months.
|
