Ford UFDB 2.0 EcoBlue Injector Problems: Symptoms & Repair (UK)

The EcoBlue 2.0 is Ford's latest diesel engine, replacing the Duratorq TDCi. Found in the Transit Custom, Focus Mk4, and Kuga Mk3. Uses Bosch solenoid injectors with AdBlue SCR. Injector issues are less common but emerge at higher mileage.

Common UFDB injector failure symptoms

• Subtle rough idle: The EcoBlue is refined — any roughness suggests injector deviation.
• AdBlue consumption increase: Poor combustion increases NOx, using more AdBlue than normal.
• Engine management light: Modern diagnostics detect injector faults earlier than older systems.

Why UFDB injectors fail

• fuel contamination
• high-pressure wear cycles
• carbon buildup
• poor fuel quality
• internal valve wear

How to diagnose UFDB injector faults

1. Read fault codes: Connect an OBD-II scanner and note any injector-related codes (P0201–P0204, P2146, P2149). This identifies which cylinder is affected.
2. Perform a leak-off test: Disconnect the fuel return pipes and route into measuring containers. Run the engine at idle for 60 seconds. Compare volumes per cylinder against manufacturer spec.
3. Listen for injector tick: Use a mechanic's stethoscope on each injector body. A dead or irregular tick indicates a stuck or failing solenoid.
4. Check fuel rail pressure: Monitor live fuel rail pressure data via diagnostic tool. Low pressure can mimic injector symptoms and may indicate a fuel pump issue instead.
5. Inspect for external leaks: Check around injector seals for signs of fuel or combustion gas leakage. Black carbon deposits indicate a blown seal.
6. Cylinder balance test: Use diagnostic software to run a cylinder contribution test. This electronically disables each injector in turn to measure its effect on engine speed.

Fault codes linked to UFDB injector issues

• P0201-P0204 – Injector circuit malfunction
• P20EE – SCR NOx catalyst efficiency below threshold

UFDB repair advice

EcoBlue injectors require coding via Ford IDS or compatible tool. The AdBlue system must be recalibrated if injectors have been causing excessive NOx.

UFDB injector replacement cost (UK)

• Per injector: £180 - £350
• Full set: £700 - £1,200
• Labour: £120 - £300

Compatible injector part numbers for UFDB

• Bosch 0445110536 – Bosch solenoid injector for EcoBlue
• Ford JK2Q-9K546-AA – Ford OE reference

Vehicles using the UFDB engine

• Ford Transit Custom (2018-present)
• Ford Focus Mk4 (2018-present)
• Ford Kuga Mk3 (2020-present)
• Ford Ranger (2019-present)

Find your exact UFDB injector by registration

Frequently asked questions

Are EcoBlue injector problems common?

Less common than the older TDCi. Most issues appear after 60,000+ miles on commercial vehicles.

How much does EcoBlue injector replacement cost?

A single injector costs £250-£400. Full set: £1,000-£1,600 plus labour.

How much does it cost to replace injectors?

Replacement typically costs £150–£350 per injector depending on brand and engine. A full set of four with professional fitting usually costs £600–£1,200.

Can I drive with a faulty injector?

Driving with a faulty injector can cause engine damage, increased fuel consumption, DPF contamination, and oil dilution. We recommend diagnosis and replacement as soon as possible.

Do new injectors need coding?

Some vehicles require injector coding after replacement using manufacturer-specific diagnostic tools. Many Bosch solenoid units are plug and play. Check your engine guide for specific requirements.