DCRI300050 — Frequently Asked Questions
Verified answers about the Denso DCRI300050 1.7 CDTi Common Rail Injector (Vauxhall/Opel Astra J, Zafira Tourer, Chevrolet Cruze).
What is injector DCRI300050?
DCRI300050 is a DENSO common rail solenoid injector diesel injector for the GM / Opel / Chevrolet 1.7 CDTi (A17DTS). It is supplied remanufactured, bench-tested and calibrated to OEM specification.
Which vehicles use DCRI300050?
It is fitted to the GM / Opel / Chevrolet 1.7 CDTi (A17DTS) — including Vauxhall/Opel Astra (J) 1.7 CDTi (A17DTS); Vauxhall/Opel Zafira Tourer (C) 1.7 CDTi (A17DTS); Chevrolet Cruze 1.7 VCDi (LKR/LUD); Chevrolet Orlando 1.7 VCDi (LKR/LUD). Confirm fitment by OE number and engine code.
What type of injector is DCRI300050?
It is a DENSO Common Rail Solenoid Injector. Always confirm the OEM markings on the injector body before fitting.
Does DCRI300050 need coding when fitted?
Yes — the Denso injector ID/QR correction code must be programmed to the correct cylinder using GM MDI/Tech2 on fitment.
What are the symptoms of a failing DCRI300050?
Common signs are rough idle and vibration, hard starting, power loss or limp mode, black smoke and an engine-management light.
What causes these injectors to fail?
Most failures come from poor fuel filtration, contamination and water in the fuel leading to wear, high back-leakage and nozzle coking. Fix the cause before fitting replacements.
Is a remanufactured DCRI300050 as good as new?
A properly remanufactured injector is stripped, fitted with new wear parts, reassembled and recalibrated on a common-rail test bench to OEM tolerances, then supplied with a warranty.
Should I replace one injector or the full set?
Replace the confirmed faulty injector first. On high-mileage engines fitting a matched set reduces the chance of a repeat fault, but it is not mandatory if the others test within spec.
Do you bench-test the injector before dispatch?
Yes. Every unit is tested for delivery, back-leakage and spray pattern on a calibrated common-rail tester before it leaves us.
Is delivery and warranty included?
Yes — the price includes free UK delivery and a 12-month warranty.
Does DCRI300050 need coding?
Yes — Denso common-rail injectors carry an ID/QR correction code that must be programmed to the correct cylinder with GM MDI/Tech2 on fitment.
Which vehicles use DCRI300050?
The GM/Opel 1.7 CDTi (A17DTS) in Astra J and Zafira Tourer C, and the Chevrolet 1.7 VCDi (LKR/LUD) in Cruze/Orlando. Confirm GM OE 55567729 before ordering.