16600-5CA0A
HITACHI 16600-5CA0A بخاخ ضغط عالي إنفينيتي Q50 Q60 نيسان Z 3.0T VR30DDTT
FIJ0041, 16600-5CA0BHigh-Speed Electromagnetic Multi-Hole Micro Nozzle-200 barتوافق المركبات والمحركات
المواصفات الفنية
| المواصفة | القيمة |
|---|---|
| نوع النظام | Hitachi High-Pressure Multi-Hole Direct Gasoline Fuel Injector |
| ضغط التشغيلمواصفة أساسية | |
| Spray Pattern | Precision multi-hole fan pattern engineered for twin-turbo high-swirl combustion |
| Fuel Rail Bolt Torque | 10 N·m (flanged rail bracket retaining bolts) |
| High Pressure Pipe Torque | 28 N·m (delivery flare nut connection) |
| Coil Resistance | 1.8 - 2.2 Ω at 20°C (direct pulse solenoid circuit) |
| أكواد الأعطال الشائعة | P0300 (Random Misfire), P0301-P0306 (Cylinder Misfire), P0171 (System Lean under Boost) |
| Workshop Precaution | Always fit new Teflon combustion seals with resizing tool and replace copper backup washers |
مضخة وقود الضغط العالي المتوافقة (مجموعة دائرة الوقود)
تعمل على نفس دائرة الضغط العالي بنظام القضيب المشترك. عند تشخيص انخفاض الضغط (P0087)، تحقق من تدفق المضخة قبل استبدال الحاقنات.
إرشادات التركيب
- [
- {
- "step": 1,
- "title": "Depressurize Fuel Rail & Remove Upper Intake Plenum",
- "instruction": "Disable low-pressure fuel pump fuse and crank engine until fuel pressure drops below 5 bar. Detach dual charge air intercooler ducting and intake manifold plenum."
- },
- {
- "step": 2,
- "title": "Disconnect Harness Plugs & Twin High Pressure Fuel Rails",
- "instruction": "Unclip wiring harness from all six direct injectors. Unscrew high pressure fuel rail retaining bolts (10 N·m) and ease fuel rails away from cylinder heads."
- },
- {
- "step": 3,
- "title": "Extract Injectors & Calibrate New Teflon Combustion Seals",
- "instruction": "Withdraw direct injectors using specialized slide puller. Clean cylinder head injector bores thoroughly and size new Teflon tip seals using calibration collet."
- },
- {
- "step": 4,
- "title": "Torque Rail Fasteners & Verify Zero High Pressure Leakage",
- "instruction": "Lubricate O-rings with clean engine oil and push injectors into position. Tighten rail bolts to 10 N·m and flare nuts to 28 N·m. Prime fuel system and inspect for leaks."
- }
- ]
رموز الاعطال التشخيصية (DTC) وبروتوكولات الفحص
رموز اعطال التشخيص الشائعة (DTC) التي يتم تسجيلها عند تآكل حاقن الديزل أو حدوث خلل كهربائي:
Fuel Rail / System Pressure Too Low
Excessive internal backleak from worn control valve seats drops common rail pressure below target under engine load.
Injector Circuit Malfunction / Open Circuit
Solenoid coil resistance drift (0.2-0.5 Ω) or piezo stack degradation triggers driver stage shutdown on affected cylinders.
Cylinder Misfire & Balancing Deviation
Carbon-clogged nozzle spray holes or missing IMA calibration causes uneven cylinder contribution. Recode ECM and verify washer seating.
Fuel Rail / System Pressure Too High
Spill line backpressure or stuck metering valve prevents rail depressurization, creating overpressure risks under load.
بروتوكولات التشخيص والخدمة الفنية
إجراءات ورشة العمل المعتمدة، وحدود الاختبار التشخيصية، ومعايير الخدمة لهذا المكون.