16790-5R1-004
HITACHI 16790-5R1-004 Yüksek Basınç Pompası Honda Fit Jazz HR-V 1.5L Earth Dreams
16790-5R1-305, 296100-0080, GE190-025Integrated Electromagnetic Spill Valve Solenoid-200 barUyumlu Araçlar ve Motorlar
| Araç | Motor | Model Yılları |
|---|---|---|
| Honda Fit GK5 1.5L | Honda 1.5L Earth Dreams VTEC Turbo & i-VTEC (L15B7 / L15BA / L15BE / L15B2) | 2015-2020 |
| Honda HR-V 1.5L | Honda 1.5L Earth Dreams VTEC Turbo & i-VTEC (L15B7 / L15BA / L15BE / L15B2) | 2016-2022 |
| Honda Vezel 1.5L | Honda 1.5L Earth Dreams VTEC Turbo & i-VTEC (L15B7 / L15BA / L15BE / L15B2) | 2015-2021 |
Teknik Özellikler
| Özellik | Değer |
|---|---|
| Manufacturer | Hitachi Astemo / Honda Genuine Parts |
| Pump Construction | Single Plunger Mechanical Cam-Driven High Pressure Pump |
| Maximum System Pressure | 200 bar (20 MPa / 2900 psi) |
| Driving Element | Camshaft Follower Lifter Tappet on Exhaust Cam |
| Flange Fastener Tightening Torque | 12 N·m M6 Thread Bolts |
| High Pressure Pipe Joint Torque | 28 N·m Flare Nut |
| Tipik Arıza Kodları | P0087 (Fuel Rail Pressure Insufficient), P0171 (Lean) |
| Common Symptom | Long engine crank time in the morning and ticking/rattling noise at idle |
| Çalışma BasıncıTemel Değer |
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": "Relieve Low Pressure Line Pressure",
- "instruction": "Remove fuel pump fuse from under-dash fuse panel. Crank engine for 5 seconds until it stalls, ensuring pressure in line drops to zero."
- },
- {
- "step": 2,
- "title": "Clean Mounting Pocket & Camshaft Tappet",
- "instruction": "Clean cylinder head pump well. Remove roller tappet, inspect for scoring, and lubricate thoroughly with molybdenum engine assembly grease."
- },
- {
- "step": 3,
- "title": "Position Camshaft at Low Base Circle",
- "instruction": "Rotate engine crankshaft clockwise until the high pressure pump driving cam lobe is at its lowest position to ease installation."
- },
- {
- "step": 4,
- "title": "Tighten Flange Bolts Alternately",
- "instruction": "Install pump with fresh engine oil applied to new O-ring. Tighten bolts alternately and evenly in two passes to final torque of 12 N\u00b7m."
- },
- {
- "step": 5,
- "title": "Torque High Pressure Line Flare Nut",
- "instruction": "Connect high pressure line and hand-tighten flare nut. Secure with flare nut wrench to 28 N\u00b7m. Start engine and verify zero fuel seepage."
- }
- ]
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.