16450-R40-003
KEIHIN 16450-R40-003 Injetor Combustível Honda Accord CR-V 2.4L K24Z
16450-R40-A01, FJ1045, 842-1236510-Hole Precision Multi-Dispersal Micro-Droplet Atomization Director-3.8 barAplicações por Veículo e Motor
| Veículo | Motor | Anos |
|---|---|---|
| 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 |
Especificações Técnicas
| Especificação | Valor |
|---|---|
| Tipo de sistema | 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 |
| Pressão de trabalhoEspec. Principal |
Bomba de alta pressão compatível (Montagem do circuito de combustível)
Opera no mesmo circuito de alta pressão Common Rail. Ao diagnosticar pressão baixa (P0087), verifique a vazão da bomba antes de trocar os injetores.
Dicas de instalação
- 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.
Codigos de Falha (DTC) e Protocolos de Diagnostico
Codigos de falha diagnosticos (DTC) comuns acionados quando este injetor common rail apresenta desgaste, falhas de circuito ou desvio:
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.
Protocolos Técnicos de Diagnóstico & Manutenção
Procedimentos de oficina verificados, valores limite de teste e normas de serviço para este conjunto.