68318470AA
BOSCH 68318470AA Форсунка Впрыска Jeep Wrangler JL Alfa 2.0L Hurricane GDI
68318470AB, 0261500448, 0261500449, 50052349Multi-Hole Laser Drilled Solenoid Actuated Direct Injection Nozzle-200 barПрименяемость к авто и двигателям
| Автомобиль | Двигатель | Годы выпуска |
|---|---|---|
| Jeep Wrangler JL 2.0T | 2.0L GME T4 Hurricane 200kW | 2018-2024 |
| Jeep Grand Cherokee 2.0T 4xe | 2.0L GME T4 Hybrid 280kW | 2022-2024 |
| Alfa Romeo Giulia 2.0T | 2.0L GME MultiAir 206kW | 2017-2024 |
Технические характеристики
| Параметр | Значение |
|---|---|
| Тип системы | Bosch HDEV5 Multi-Hole Direct Gasoline Fuel Injector |
| Рабочее давлениеОсн. параметр | |
| Spray Pattern | Asymmetrical 6-orifice pattern engineered for deep chamber penetration |
| Fuel Rail Bolt Torque | 12 N·m (holding bracket fasteners) |
| High Pressure Pipe Torque | 27 N·m Flare Nut Connection |
| Coil Resistance | 1.4 - 1.8 Ω at 20°C (High performance peak-and-hold excitation) |
| Типичные коды ошибок OBD | P0300 (Random Misfire), P0301-P0304 (Cylinder Misfire), P0172 (Fuel System Rich Bank 1) |
| Workshop Precaution | Install new Teflon combustion tip seals using expanding mandrel and sizing collar |
Совместимый ТНВД (Топливный контур в сборе)
Работает в одном контуре Common Rail высокого давления. При падении давления (P0087) проверьте подачу насоса перед заменой форсунок.
Рекомендации по установке
- [
- {
- "step": 1,
- "title": "Relieve Fuel System Residual Pressure",
- "instruction": "Depressurize high pressure fuel system using diagnostic scan tool or fuel pump relay isolation. Disconnect battery negative terminal."
- },
- {
- "step": 2,
- "title": "Disconnect Wiring Harness & Fuel Rail Hard Lines",
- "instruction": "Unclip wiring harness from all four injectors. Loosen the high pressure fuel crossover pipe (27 N·m) and unbolt fuel rail fasteners (12 N·m)."
- },
- {
- "step": 3,
- "title": "Extract Injectors & Fit New Teflon Chamber Seals",
- "instruction": "Use slide hammer tool to extract direct injectors from cylinder head. Install new blue Teflon seals using calibration guide sleeves."
- },
- {
- "step": 4,
- "title": "Torque Rail Fasteners & Verify High Pressure Seal",
- "instruction": "Seat injectors into cylinder ports. Torque rail bolts to 12 N·m. Tighten steel high pressure line to 27 N·m. Prime fuel system and check for leaks."
- }
- ]
Коды неисправностей (DTC) и протоколы диагностики
Основные диагностические коды неисправностей (DTC), возникающие при износе, замыкании цепи или отклонении калибровки данной форсунки Common Rail:
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.
Технические протоколы диагностики и обслуживания
Проверенные сервисные процедуры, пороговые значения тестов и регламенты для данного узла.