DCRI105080 — Technical Research
Denso common-rail injector for the GM/Opel 1.7 CDTI (Isuzu-built Circle-L engine, codes A17DTR/Z17DTR, 92 kW / 125 hp) fitted to the Astra H, Corsa D, Meriva and Zafira B. OE 8-97313861-0 (GM short reference 97313861). The injector code must be written to the ECU with GM MDI/Tech2 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 DCRI105080 1.7 CDTI (A17DTR/Z17DTR) Common Rail Injector (Vauxhall/Opel Astra H, Corsa D, Meriva, Zafira B)
Denso common-rail injector for the GM/Opel 1.7 CDTI (Isuzu-built Circle-L engine, codes A17DTR/Z17DTR, 92 kW / 125 hp) fitted to the Astra H, Corsa D, Meriva and Zafira B. OE 8-97313861-0 (GM short reference 97313861). The injector code must be written to the ECU with GM MDI/Tech2 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 1.7 CDTI.
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 code to the correct cylinder with GM MDI/Tech2 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 1.7 CDTI 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 DCRI105080?+
A Denso common-rail diesel injector for the GM/Opel 1.7 CDTI (A17DTR/Z17DTR) Isuzu-built engine. OE 8-97313861-0.
Which vehicles use DCRI105080?+
Vauxhall/Opel Corsa D, Astra H, Zafira B and Meriva with the 1.7 CDTi (125 hp) engine.
Is it solenoid or piezo?+
It is a Denso solenoid common-rail injector.
Does DCRI105080 need coding?+
Yes - write the injector code to the correct cylinder with GM MDI/Tech2 when fitting.
What is the OE part number?+
Isuzu/GM 8-97313861-0 (short reference 97313861) references Denso DCRI105080.
Which engine codes does it fit?+
The 1.7 CDTI Circle-L engine A17DTR and Z17DTR (125 hp); confirm the exact code by VIN.
What are the symptoms of failure?+
Rough idle, vibration, hard starting, black smoke, power loss/limp mode and an EML.
Why does my 1.7 CDTI 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 DCRI105080 perform like new?+
A properly remanufactured injector is bench-tested and recalibrated to the Denso plan, then coded on fitment.