DCRI200420 — Technical Research
Denso common-rail injector for the Toyota 2.2 D-4D / D-CAT (engine 2AD-FHV/2AD-FTV) fitted to the RAV4 III, Avensis (T27) and Verso. Toyota OE 23670-0R090 / 23670-26060. The injector quantity-adjustment (IMA) code must be written to the ECU with Toyota Techstream on fitment. Failures are driven by poor fuel filtration, contamination and back-leakage wear. Key symptoms: Rough idle / vibration; Hard starting; Loss of power / limp mode; Black smoke. Common failure modes: Internal wear / high back-leakage; Water-in-fuel corrosion; Nozzle coking.
Denso DCRI200420 2.2 D-4D / D-CAT (2AD-FHV/2AD-FTV) Common Rail Injector (Toyota RAV4 / Avensis / Verso)
Denso common-rail injector for the Toyota 2.2 D-4D / D-CAT (engine 2AD-FHV/2AD-FTV) fitted to the RAV4 III, Avensis (T27) and Verso. Toyota OE 23670-0R090 / 23670-26060. The injector quantity-adjustment (IMA) code must be written to the ECU with Toyota Techstream on fitment. Failures are driven by poor fuel filtration, contamination and back-leakage wear. Key symptoms: Rough idle / vibration; Hard starting; Loss of power / limp mode; Black smoke. Common failure modes: Internal wear / high back-leakage; Water-in-fuel corrosion; Nozzle coking.
A leaking injector unbalances cylinder fuelling on the 2.2 D-4D.
Excess back-leakage drops cranking rail pressure.
Out-of-range delivery or rail-pressure deviation cuts power.
Poor atomisation over-fuels the cylinder.
Cylinder-specific injector or fuel-metering codes.
- InstallationWrite the injector quantity-adjustment (IMA) code to the correct cylinder with Toyota Techstream before road test.
- InstallationRenew the combustion seal and clamp hardware; torque to spec.
- MisdiagnosisRead live back-leakage data to find the weak cylinder before removal.
- WarningFix contamination (filter/water/debris) first; the 2AD is sensitive to fuel quality.
- TestingBench-test on a Denso-capable CR tester across delivery and back-leakage points before refit.
What is Denso injector DCRI200420?+
A Denso common-rail diesel injector for the Toyota 2.2 D-4D / D-CAT (2AD-FHV/2AD-FTV) engine. Toyota OE 23670-0R090 / 23670-26060.
Which vehicles use DCRI200420?+
Toyota RAV4 III, Avensis (T27) and Verso with the 2.2 D-4D / D-CAT engine, roughly 2006-2018.
Is it solenoid or piezo?+
It is a Denso solenoid common-rail injector.
Does DCRI200420 need coding?+
Yes - write the injector quantity-adjustment (IMA) code to the correct cylinder with Toyota Techstream when fitting.
What are the OE part numbers?+
Toyota 23670-0R090 and 23670-26060 reference Denso DCRI200420.
Should I replace all four injectors together?+
Best practice on the 2AD is to replace and code a matched set to keep cylinder fuelling balanced.
What are the symptoms of failure?+
Rough idle, vibration, hard starting, black smoke, power loss/limp mode and an EML.
Why does my 2.2 D-4D run rough?+
A worn or leaking injector unbalances fuelling; read live back-leakage data and bench-test the weak cylinder.
What causes these injectors to fail?+
Poor fuel filtration, contamination and back-leakage wear - fix the cause first.
Does a remanufactured DCRI200420 perform like new?+
A properly remanufactured injector is bench-tested and recalibrated to the Denso plan, then IMA-coded on fitment.
How does 23670-0R060 differ from 23670-0R090?+
Both are Denso injectors for the Toyota 2.2 D-4D (2AD-FHV/2AD-FTV). They are sequential Toyota part-number revisions of the same injector for the same engine; Toyota released superseding numbers over the production run. Fit the revision specified for your VIN.