16600-1LA0A
HITACHI 16600-1LA0A Injecteur Direct Infiniti Q50 3.0T QX80 5.6L V8
16600-EY00A, 16600-1LA0B, FIJ0039High-Response Multi-Hole Electromagnetic High-Pressure Nozzle-150 barCompatibilité véhicules et motorisations
Spécifications techniques
| Spécification | Valeur |
|---|---|
| Type de système | Nissan Direct Injection Gasoline (DIG) 150-bar System |
| Pression de serviceSpéc. clé | |
| Spray Configuration | High-Pressure Laser Multi-Hole Symmetrical Spray Pattern |
| Couple de vis de bride de serrage | 10 N·m (89 in-lb) fuel rail mounting bolts📐 Couple & Angle de serrage → |
| Couple raccord tuyau haute pression | 28 N·m (21 lb-ft) high-pressure delivery pipe flare nut |
| Combustion Seal | High-Density Virgin PTFE Combustion Ring |
| Upper Rail Sealing | Fluorocarbon (FKM) High-Temp Viton O-Ring |
| Manufacturer | Hitachi Astemo (Tier-1 OEM for Nissan Motor Co.) |
| OEM Production Number | 16600-1LA0A / FIJ0039 |
Pompe haute pression associée (Ensemble circuit de carburant)
Fonctionne sur le même circuit haute pression Common Rail. En cas de chute de pression (P0087), vérifier le débit de la pompe avant de remplacer les injecteurs.
Conseils de montage
- Never lubricate the lower PTFE combustion seal: Oil degrades the Teflon seal, causing high-pressure combustion blow-by and melted injector bodies.
- Inspect spark plugs on corresponding cylinders: A dripping injector washes fuel down the cylinder, fouling the plug and triggering misfire codes even after injector replacement.
- Verify low-pressure feed pressure: Ensure the tank lift pump delivers stable 5.0 to 6.5 bar (72 to 94 psi) before diagnosing high-pressure injector issues.
- Never reuse high-pressure crossover lines: Metallic flare ends yield upon tightening; reusing them causes dangerous high-pressure fuel sprays onto exhaust manifolds.
Codes de Defaut (DTC) & Protocoles de Diagnostic
Codes de defaut diagnostiques (DTC) courants déclenchés lorsque cet injecteur common rail subit une usure, des pannes de circuit ou une dérive d'étalonnage:
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.
Protocoles Techniques de Diagnostic & Réparation
Procédures d'atelier vérifiées, seuils de test et guides d'intervention pour cet ensemble.