HITACHI
16625AA040
Özellikleri Gör
SolenoidSubaru Direct Injection Turbo (DIT) 200-bar Fuel SystemEuro 3306
HITACHI 16625AA040 Yüksek Basınç Pompası Subaru WRX Forester XT Ascent 2.0T 2.4T
OEM REFERANSI
16625AA000, HUP0044KONTROL VALFİ
Integrated High-Speed Flow Control Spill ValveENJEKTÖR MEMESİ
-RAİL BASINCI
200 barEMİSYONTier 3 Bin 30 / Euro 6d / LEV III
GARANTİ12 Ay
02
Uyumlu Araçlar ve Motorlar
| Araç | Motor | Model Yılları |
|---|---|---|
| Subaru WRX VA | Subaru / Toyota 2.0L & 2.4L Boxer DIT / D-4S (FA20D / FA20F / FA24D / FA24F) | 2015-2021 |
| Subaru Forester XT SJ | Subaru / Toyota 2.0L & 2.4L Boxer DIT / D-4S (FA20D / FA20F / FA24D / FA24F) | 2014-2018 |
| Subaru Ascent WN | Subaru / Toyota 2.0L & 2.4L Boxer DIT / D-4S (FA20D / FA20F / FA24D / FA24F) | 2019-2024 |
03
Teknik Özellikler
| Özellik | Değer |
|---|---|
| Sistem Tipi | Hitachi Cam-Driven Single-Plunger Mechanical High-Pressure Fuel Pump |
| Çalışma BasıncıTemel Değer | |
| Drive Configuration | Horizontal-opposed boxer exhaust camshaft drive lobe with roller tappet |
| Flange Mounting Bolt Torque | 12 N·m (flanged retaining screws torqued alternately) |
| High Pressure Line Torque | 27 N·m (rigid flared delivery pipe fitting) |
| Flow Regulator Valve Resistance | 8.8 - 10.8 Ω at 20°C (proportional metering solenoid) |
| Tipik Arıza Kodları | P0087 (Fuel Rail Pressure Low), P0088 (Rail Pressure High), P0090 (Fuel Pressure Regulator Control) |
| Workshop Precaution | Lubricate internal drive plunger and roller bucket contact surface with clean motor oil |
04
Montaj İpuçları
- [
- {
- "step": 1,
- "title": "Relieve Direct Injection Pressure & Disconnect Battery",
- "instruction": "Depressurize fuel line via scan tool command or fuel pump relay removal. Disconnect negative battery ground."
- },
- {
- "step": 2,
- "title": "Remove Intercooler Piping & Foam Sound Damper",
- "instruction": "Remove upper charge air piping on passenger side of engine bay. Unclip protective foam sound insulation around HPFP."
- },
- {
- "step": 3,
- "title": "Disconnect Fuel Unions & Mounting Flange Fasteners",
- "instruction": "Unplug electrical harness from flow control solenoid. Disconnect high-pressure pipe (27 N·m). Back out two flange bolts evenly to release spring tension."
- },
- {
- "step": 4,
- "title": "Reinstall Replacement Pump, Torque Bolts & Test Pressure",
- "instruction": "Fit new lubricated O-ring seal. Torque mounting flange bolts alternately to 12 N·m. Tighten delivery line to 27 N·m. Crank engine and verify fuel rail pressure."
- }
- ]
05
Ariza Kodlari (DTC) ve Teshis Protokolleri
Bu common rail enjektorunde asinma, devre arizasi veya kalibrasyon kaymasi olustugunda tetiklenen yaygin ariza kodlari (DTC):
P0087Critical
Fuel Rail / System Pressure Too Low
Excessive internal backleak from worn control valve seats drops common rail pressure below target under engine load.
P0201 - P0208High
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.
P0300 / P0301+High
Cylinder Misfire & Balancing Deviation
Carbon-clogged nozzle spray holes or missing IMA calibration causes uneven cylinder contribution. Recode ECM and verify washer seating.
P0088High
Fuel Rail / System Pressure Too High
Spill line backpressure or stuck metering valve prevents rail depressurization, creating overpressure risks under load.
ATÖLYE PROTOKOLLERİ
Teknik Arıza Teşhis ve Servis Protokolleri
Bu parça grubu için doğrulanmış atölye prosedürleri, test eşik değerleri ve servis talimatları.
ATÖLYE COMMON RAIL ARIZA TEŞHİSİ
Teknik Kılavuzu OkuYüksek Basınç Pompası Arıza Teşhisi: P0087 ve Bosch CP4
COMMON RAIL ATÖLYE ARIZA TEŞHİSİ
Teknik Kılavuzu OkuYakıt Ölçüm Valfi IMV SCV Arıza Teşhisi: P0088 Test
OBD-II TEŞHİS PROTOKOLÜ
Teknik Kılavuzu OkuP0087 Düşük Rail Basıncı Teşhis Kılavuzu
COMMON RAIL SERVİS DİYAGNOSTİĞİ
Teknik Kılavuzu Oku