How to choose ECU AG91-12A650-XF for your Ford
This is a Delphi DCM3.5 engine control unit with Ford number AG91-12A650-XF and number 28270044, used in Ford vehicles with the 2.0 TDCi engine. The unit is tested before dispatch.
How to check compatibility
The safest way is to compare labels. If your ECU shows number AG91-12A650-XF and number 28270044, it is the same version – whatever the Ford model and year, as this number may appear in different cars. If the sticker is hard to read or you have questions, send us a photo of it before buying.
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.
Ford number and Delphi number
Both numbers on the label matter when you order:
- Ford number: AG91-12A650-XF / AG9112A650XF
- Delphi number: 28270044
- ECU type: Delphi DCM3.5
Preparation and fitting
- After purchase, send us your VIN – we prepare the ECU with data from the Ford server and the latest software. This service is included in the price.
- The ECU is not plug & play: after fitting it requires PATS programming (keys and VIN) with FORScan or Ford IDS.
- Warranty: 6 months.
Looking for a different number? See also: AG91-12A650-YF (28270047), AG91-12A650-YG (28278416), AG91-12A650-AEF (28270050), AG91-12A650-ZG (28278423). The full list is in the Ford DCM3.5 ECU collection.
Our guide Ford DCM3.5 ECU replacement and VIN programming explains the replacement and programming, and the Delphi page tells you more about the manufacturer.
You will find other numbers in the Ford Engine Control Units (ECUs) category.
Common questions about ECU AG9112A650XF
Does ECU AG91-12A650-XF fit my Ford?
Check the label of your ECU: Ford number AG91-12A650-XF and number 28270044. The same number is used in several Ford models, so the number decides, not the model and year.
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Can I just fit ECU AG9112A650XF and start the car?
No. The ECU is not plug & play – after fitting, PATS programming is needed, which means assigning the keys and VIN with FORScan or Ford IDS.
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Is VIN preparation charged extra?
No, it is included in the price. Send us your VIN after purchase – we prepare the ECU with data from the Ford server and the latest software.
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What do I need to send after buying ECU AG91-12A650-XF?
Just your Ford’s VIN. Based on it, we prepare the ECU with data from the Ford server and the latest software.
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