16450-R40-003
KEIHIN 16450-R40-003 Injecteur Carburant Honda Accord CR-V 2.4L K24Z
16450-R40-A01, FJ1045, 842-1236510-Hole Precision Multi-Dispersal Micro-Droplet Atomization Director-3.8 barCompatibilité véhicules et motorisations
| Véhicule | Moteur | Années |
|---|---|---|
| Honda Accord Mk8 / CR-V | Honda 2.4L Earth Dreams & K-Series i-VTEC (K24W1 / K24W2 / K24Z / K24A) | 2008-2014 |
| Acura TSX CU2 | Honda 2.4L Earth Dreams & K-Series i-VTEC (K24W1 / K24W2 / K24Z / K24A) | 2009-2014 |
| Honda Civic Si | Honda 2.4L Earth Dreams & K-Series i-VTEC (K24W1 / K24W2 / K24Z / K24A) | 2012-2015 |
Spécifications techniques
| Spécification | Valeur |
|---|---|
| Type de système | Honda PGM-FI Multi-Point Programmed Electronic Fuel Injection |
| Operating Fuel Pressure | 3.8 bar (55 psi / 380 kPa regulated fuel rail pressure) |
| Static Fuel Flow Rate | 310 cc/min @ 3.5 bar (29.5 lb/hr) calibrated delivery |
| Electrical Resistance | 10.0 - 11.6 Ohms @ 20°C (High-Impedance Saturated Solenoid) |
| Spray Geometry | 10-Hole Precision Wide-Angle Multi-Orifice Micro-Atomization |
| Fuel Rail Mounting Nut Torque | 12 N·m (106 in-lb / 8.8 lb-ft) M8 flange nuts |
| Fuel Pulsation Damper Locknut | 22 N·m (16 lb-ft) threaded rail damper fitting |
| Seals Architecture | Upper Viton Fluorocarbon O-Ring & Lower Resilient Vibration Grommet |
| Manufacturer | Keihin Corporation (Tier-1 OEM for Honda Motor Co.) |
| Manufacturer Part Number | 16450-R40-003 / 16450-R40-A01 |
| Pression de serviceSpéc. clé |
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
- Mandatory lower manifold cushion renewal: Never reuse hardened lower manifold rubber cushions; hardened rubber permits unmetered air intrusion, causing persistent P0171 lean codes.
- Verify injector free rotation: After torquing the fuel rail nuts, verify that each injector rotates smoothly between fingers to ensure O-rings are seated without twisting.
- Never use silicone sealants: Lubricate O-rings strictly with fresh engine oil or spindle oil; silicone will permanently contaminate lambda sensors.
- Prime fuel circuit prior to cranking: Turn ignition switch to ON (Position II) for 3 seconds twice without cranking to pressurize the rail and check for leaks.
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.