HITACHI
16625AA040
Technische Daten
SolenoidSubaru Direct Injection Turbo (DIT) 200-bar Fuel SystemEuro 3306
HITACHI 16625AA040 Hochdruckpumpe Subaru WRX Forester XT Ascent 2.0T 2.4T
OE-REFERENZ
16625AA000, HUP0044STEUERVENTIL
Integrated High-Speed Flow Control Spill ValveEINSPRITZDÜSE
-BETRIEBSDRUCK
200 barABGASNORMTier 3 Bin 30 / Euro 6d / LEV III
GARANTIE12 Monate
02
Fahrzeug- und Motorverwendung
| Fahrzeug | Motor | Baujahre |
|---|---|---|
| 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
Technische Daten
| Spezifikation | Wert |
|---|---|
| Systemtyp | Hitachi Cam-Driven Single-Plunger Mechanical High-Pressure Fuel Pump |
| BetriebsdruckKernwert | |
| 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) |
| Typische Fehlercodes | 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
Einbauhinweise
- [
- {
- "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
Fehlercodes (DTC) & Diagnoseprotokolle
Häufige Diagnose-Fehlercodes (DTCs), die ausgelöst werden, wenn dieser Common-Rail-Injektor Verschleiß, Schaltkreisfehler oder Kalibrierungsabweichungen aufweist:
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.
WERKSTATT-LEITFÄDEN
Technische Diagnose- & Service-Protokolle
Verifizierte Prüfverfahren, Fehlercode-Grenzwerte und Werkstatt-SOPs für diese Baugruppe.
COMMON-RAIL WERKSTATT-DIAGNOSE
Technischen Leitfaden lesenHochdruckpumpe Diagnose: P0087 Fehler & Bosch CP4 Test
COMMON-RAIL WERKSTATT-DIAGNOSE
Technischen Leitfaden lesenZumesseinheit ZME IMV SCV Diagnose: P0088 Fehlertest
OBD-II-DIAGNOSEPROTOKOLL
Technischen Leitfaden lesenDiagnoseleitfaden P0087: Raildruck zu niedrig
COMMON-RAIL WERKSTATT-DIAGNOSE
Technischen Leitfaden lesen