23209-25010
DENSO 23209-25010 Yüksek Basınç Enjektörü Toyota Camry RAV4 2.5L A25A
23290-25010, 23209-F0010, 297500-1580High-Speed Electromagnetic Multi-Hole Micro Nozzle-200 barTeknik Özellikler
| Özellik | Değer |
|---|---|
| Sistem Tipi | Denso Multi-Hole Direct Gasoline Fuel Injector |
| Çalışma BasıncıTemel Değer | |
| Spray Pattern | Laser-drilled multi-hole fan pattern targeted at intake tumble flow |
| Fuel Rail Bolt Torque | 21 N·m (flanged holding bracket bolts) |
| High Pressure Pipe Torque | 32 N·m Flare Nut Connection |
| Coil Resistance | 1.7 - 2.1 Ω at 20°C (High-speed pulse driver circuit) |
| Tipik Arıza Kodları | P0300 (Random Misfire), P0301-P0304 (Cylinder Misfire), P0171 (System Too Lean) |
| Workshop Precaution | Replace blue Teflon combustion chamber seal ring using expansion mandrel and calibration collar |
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 System & Remove Air Intake Cleaner",
- "instruction": "Depressurize direct injection circuit via fuel pump circuit breaker or scan tool command. Remove engine acoustic cover and intake resonator ducting."
- },
- {
- "step": 2,
- "title": "Disconnect Injector Harness & High Pressure Fuel Pipe",
- "instruction": "Unplug electrical connectors from the direct injectors. Counter-hold the rail fitting and loosen the high pressure delivery pipe flare nuts (32 N·m)."
- },
- {
- "step": 3,
- "title": "Extract Injectors & Fit New Teflon Sealing Rings",
- "instruction": "Carefully draw out direct injectors using slide hammer tool. Fit new Teflon combustion seals over injector tips and compress with sizing sleeve."
- },
- {
- "step": 4,
- "title": "Torque Fuel Rail Bolts & High Pressure Line Connections",
- "instruction": "Seat injectors into cylinder head ports. Torque fuel rail mounting bolts to 21 N·m. Tighten high pressure pipe flare nut to 32 N·m. Verify zero fuel leakage."
- }
- ]
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.