31686560
BOSCH 31686560 Yüksek Basınç Pompası Volvo XC90 XC60 S90 2.0L Drive-E T6
31478796, 31375549, 0261520295, 0261520476Integrated High-Speed Digital Flow Control Valve (FCV)-200 barTeknik Özellikler
| Özellik | Değer |
|---|---|
| Sistem Tipi | Bosch HDP5 Mechanical High Pressure Fuel Pump |
| Çalışma BasıncıTemel Değer | |
| Actuation Type | Exhaust camshaft dedicated pump lobe driving roller tappet |
| Mounting Flange Bolt Torque | 13 N·m (alternating diagonal progressive tightening) |
| High Pressure Pipe Torque | 25 N·m Flare Nut Connection |
| Flow Control Solenoid Resistance | 9.8 - 12.0 Ω at 20°C (ECU digital metering valve) |
| Tipik Arıza Kodları | P0087 (Fuel Rail Pressure Too Low), P0088 (Rail Pressure Too High), P1193 (Fuel Delivery Error) |
| Workshop Precaution | Lubricate internal roller follower with clean engine oil prior to inserting into cylinder head bore |
Uyumlu Yüksek Basınç Pompası (Yakıt Devresi Grubu)
Aynı yüksek basınçlı Common Rail devresinde çalışır. Düşük basınç (P0087) teşhisinde enjektörleri değiştirmeden önce pompa debisini kontrol edin.
Montaj İpuçları
- [
- {
- "step": 1,
- "title": "Depressurize Fuel Rail & Remove Acoustic Cover",
- "instruction": "Depressurize fuel rail via diagnostic scan tool or fuse isolation. Remove upper engine acoustic shroud to access the cylinder head rear."
- },
- {
- "step": 2,
- "title": "Disconnect Fuel Feed Hose & Steel High Pressure Union",
- "instruction": "Detach low pressure quick-release fuel supply hose. Unscrew high pressure steel pipe flare nut (25 N·m) with backup counter-wrench."
- },
- {
- "step": 3,
- "title": "Unbolt Mounting Fasteners & Inspect Roller Lifter",
- "instruction": "Loosen two M6 Torx mounting bolts evenly in half-turn increments to relieve spring tension. Remove pump and inspect camshaft roller tappet for scoring."
- },
- {
- "step": 4,
- "title": "Fit New O-Ring, Torque Bolts Evenly & Check For Leaks",
- "instruction": "Install replacement O-ring with fresh engine oil coating. Torque mounting bolts alternately to 13 N·m. Tighten steel line to 25 N·m. Test run engine."
- }
- ]
Ariza Kodlari (DTC) ve Teshis Protokolleri
Bu common rail enjektorunde asinma, devre arizasi veya kalibrasyon kaymasi olustugunda tetiklenen yaygin ariza kodlari (DTC):
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.
Teknik Arıza Teşhis ve Servis Protokolleri
Bu parça grubu için doğrulanmış atölye prosedürleri, test eşik değerleri ve servis talimatları.