Ford engine ECU AG9112A650YF – description
On this page you can buy ECU AG91-12A650-YF with number 28270047, a Delphi DCM3.5 unit for Fords with the 2.0 TDCi engine. It goes through a function check before dispatch.
PATS programming and VIN preparation
- VIN preparation included: data from the Ford server and the latest software.
- You send us the VIN after purchase.
- PATS programming (keys + VIN) with FORScan or Ford IDS is required after fitting – the ECU is not plug & play.
- Warranty: 6 months.
Numbers to compare with your label
The housing of the original ECU carries a sticker with its numbers. On this unit they are:
- Ford number: AG91-12A650-YF / AG9112A650YF
- Delphi number: 28270047
- ECU type: Delphi DCM3.5
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.
Keep in mind that the cause may also be the wiring, the power supply or a sensor. Diagnose first, then buy.
Choose by number, not by model
Fords with the 2.0 TDCi engine used many versions of the DCM3.5 ECU, and one version could go into several models. That is why you should choose the ECU by its numbers only: Ford AG91-12A650-YF and Delphi 28270047 must match your unit. If in doubt, send us a photo of the label before ordering.
Looking for a different number? See also: AG91-12A650-YG (28278416), AG91-12A650-AEF (28270050), AG91-12A650-ZG (28278423), AG91-12A650-ZF (28270050). 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.
Full range in this group: Ford Engine Control Units (ECUs).
Questions and answers – ECU AG91-12A650-YF
Can I just fit ECU AG9112A650YF 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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Can I program ECU AG91-12A650-YF myself?
Yes, if you have FORScan with a suitable interface or access to Ford IDS. Otherwise, PATS programming can be done by a workshop that services Ford vehicles.
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Does ECU AG9112A650YF come with a warranty?
Yes – 6 months. The ECU is tested before shipping.
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Why give the VIN after ordering?
The VIN lets us prepare the ECU for your car with data from the Ford server and the latest software. The service is included in the price.
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