Delphi DCM3.5 ECU AG91-12A650-AHF – what to know
Unit AG91-12A650-AHF (Delphi 28270075) controls the 2.0 TDCi engine in Ford cars. We test every unit before sending it to the customer.
When the ECU may be faulty
An engine ECU failure may show up as:
- no start and no signal at the injectors,
- the diagnostic tool cannot connect to the ECU,
- the ECU gets no power even though the fuses are OK,
- problems after water damage or a short in the wiring.
Faults in the wiring, power supply or sensors can cause similar symptoms, so run a diagnosis before you buy.
Ford number and Delphi number
Both numbers on the label matter when you order:
- Ford number: AG91-12A650-AHF / AG9112A650AHF
- Delphi number: 28270075
- ECU type: Delphi DCM3.5
Fitting step by step
- After purchase, you send us the VIN.
- We prepare the ECU with data from the Ford server and the latest software – included in the price.
- You fit the ECU in the car.
- You carry out PATS programming (keys and VIN) with FORScan or Ford IDS, or have a workshop do it.
Warranty on the ECU: 6 months.
Does this ECU fit your car?
Model and year are not enough, because the same number AG91-12A650-AHF may have been fitted to several Ford models. Look at the label of your ECU and check that it shows AG91-12A650-AHF and 28270075. Not sure? Send us a photo of the sticker and we will check it before you buy.
Looking for a different number? See also: AG91-12A650-XF (28270044), AG91-12A650-YF (28270047), AG91-12A650-YG (28278416), AG91-12A650-AEF (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.
See also the other items in the Ford Engine Control Units (ECUs) category.
Frequently asked questions about ECU AG91-12A650-AHF 28270075
Does ECU AG91-12A650-AHF fit my Ford?
Check the label of your ECU: Ford number AG91-12A650-AHF and number 28270075. The same number is used in several Ford models, so the number decides, not the model and year.
|
Who carries out PATS programming of ECU AG91-12A650-AHF?
You can do it yourself with FORScan and a suitable interface or with Ford IDS. If you do not have these tools, a workshop that services Fords can do the PATS programming.
|
Does ECU AG9112A650AHF come with a warranty?
Yes – 6 months. The ECU is tested before shipping.
|
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.
|