Delphi DCM3.5 ECU AG91-12A650-ZF – what to know
Unit AG91-12A650-ZF (Delphi 28270050) controls the 2.0 TDCi engine in Ford cars. We test every unit before sending it to the customer.
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-ZF and Delphi 28270050 must match your unit. If in doubt, send us a photo of the label before ordering.
Label data of ECU AG91-12A650-ZF
- Ford number: AG91-12A650-ZF / AG9112A650ZF
- Delphi number: 28270050
- ECU type: Delphi DCM3.5
The Ford number may be written with dashes (AG91-12A650-ZF) or without them (AG9112A650ZF) – it is the same number.
What happens after purchase
Once you have placed your order, send us the car’s VIN. We prepare the ECU with data from the Ford server and load the latest software – this service costs nothing extra.
The ECU is not plug & play. After fitting, the keys and VIN must be assigned in the PATS procedure using FORScan or Ford IDS. The warranty is 6 months.
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.
Before fitting, it is worth reading our guide Ford DCM3.5 ECU replacement and VIN programming. If your ECU has a different number, check AG91-12A650-ABD (28264930), AG91-12A650-ABF (28270053), AG91-12A650-ABG (28278426), AG91-12A650-ACF (28270056) or the whole Ford DCM3.5 ECU collection. About the manufacturer: Delphi.
See also the other items in the Ford Engine Control Units (ECUs) category.
Frequently asked questions about ECU AG91-12A650-ZF 28270050
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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Can I program ECU AG91-12A650-ZF 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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What is the warranty on ECU AG91-12A650-ZF?
The warranty is 6 months. We test every unit before dispatch.
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What do I need to send after buying ECU AG91-12A650-ZF?
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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