Delphi EJDR00301Z Diesel Injector

2.0L TDCi · Remanufactured

Remanufactured Delphi EJDR00301Z diesel injector for Ford Mondeo and Jaguar X-Type 2.0 TDCi early-generation applications. Cross-references EJDR00101Z, EJDR00002Z, EJDR00001Z, 2S7Q-9K546-AH, 2S7Q-9K546-AJ, HRD322 family code. Fits FMBA, FMBB, N7BA and N7BB engine codes exclusively. Not to be confused with later HRD330, HRD326 or HRD324 revisions. OEM-tested and calibrated with full flow and leak-back verification on CR318 PRO test bench. Includes 12-month unlimited-mileage warranty. Supplied as an exchange unit — return your old injector within 21 days.

Shared engine codes

FMBA, FMBB, N7BA, N7BB

Compatible vehicles

Common EJDR00301Z injector failure symptoms

Hot-start failure or very long cranking when warm; cold-start rattle / injector knock; misfire and uneven running at idle; black smoke under acceleration; cutting out at junctions when hot. When two or more appear together, suspect the injector before peripherals — a comparative leak-off test isolates the failed unit without tear-down.

What causes these injectors to fail

Excessive injector back-leak preventing rail pressure build when hot (classic delphi ejdr failure); worn injector internals causing combustion knock; low-pressure fuel supply aeration compounding hot-start faults. Internal wear cannot be repaired in situ — once delivery drifts outside calibration, remanufacture or replacement is the reliable fix.

How workshops diagnose EJDR00301Z faults

A warm-engine leak-off test is the decisive diagnostic on this family — cold tests can pass a failing injector. Delphi injectors are calibrated: the new injector's calibration code must be programmed at fitting. Check the low-pressure supply and lift pump before condemning injectors. Label leak-off pipes before removal to avoid cross-connection. Never condemn a common-rail injector on a fault code alone.

How every unit is tested before despatch

Each remanufactured EJDR00301Z is fully stripped, ultrasonically cleaned and inspected; worn components are replaced with OE-grade parts. The rebuilt unit is calibrated on a common-rail test bench against the manufacturer's specification — delivery, back-leak and response verified — and despatched with a 12-month parts warranty and its calibration data on file.

Vehicle coverage at a glance

The EJDR00301Z trusted family covers 3 verified vehicle fitments across 2 makes: Ford and Jaguar. Every fitment listed is registry-verified.

OE & cross-references

EJDR00301Z cross-references 24 further OE numbers, including EJDR00101Z, EJDR00002Z, EJDR00001Z, R00301Z, R00101Z, R00002Z, R00001Z and HRD322. Always match the reference etched on your failed unit's body.

Related fault codes & engine guides

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