JX6G-9F593-AA
BOSCH JX6G-9F593-AA Injetor Alta Pressão Ford Focus Mk4 Fiesta ST 1.5T Dragon
JX6Z-9F593-A, 0261500824, 0261500595High-Pressure Multi-Hole Direct Solenoid Valve-250 barEspecificações Técnicas
| Especificação | Valor |
|---|---|
| Tipo de sistema | Bosch HDEV5 250-bar High-Pressure Gasoline Direct Injector |
| Pressão de trabalhoEspec. Principal | |
| Combustion Architecture | Optimized for 3-cylinder asymmetric firing order with selective cylinder deactivation |
| Fuel Rail Bolt Torque | 11 N·m (retaining clamp screws) |
| High Pressure Line Torque | 26 N·m (fuel delivery pipe flare connection) |
| Solenoid Coil Resistance | 1.6 - 2.0 Ω at 20°C (rapid pulse inductive circuit) |
| Códigos de falha comuns | P0300 (Random Misfire), P0301-P0303 (Cylinder Misfire), P0171 (Fuel Trim System Lean) |
| Workshop Precaution | Do not reuse Teflon tip seals; ensure cylinder deactivation solenoid connectors are secured during harness routing |
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
- [
- {
- "step": 1,
- "title": "Relieve Fuel Pressure & Disconnect 12V Battery Ground",
- "instruction": "Depressurize fuel rail via scan tool command or fuel pump inertia switch cutout. Disconnect battery negative ground post before servicing."
- },
- {
- "step": 2,
- "title": "Remove Air Ducting, Harness Plugs & Fuel Rail Fasteners",
- "instruction": "Disconnect charge air hoses over cylinder head. Unclip electrical harness connections from direct injectors. Loosen fuel rail retaining fasteners (11 N·m)."
- },
- {
- "step": 3,
- "title": "Withdraw Direct Injectors & Fit Fresh Teflon Tip Seals",
- "instruction": "Extract direct injectors using slide puller adapter. Inspect nozzle tip micro-orifices. Install fresh Teflon combustion seal ring and reshape using resizing tool."
- },
- {
- "step": 4,
- "title": "Torque Fuel Rail Bolts & High Pressure Fuel Unions",
- "instruction": "Position injectors into cylinder head ports. Tighten rail hold-down bolts to 11 N·m. Torque high pressure fuel pipe nut to 26 N·m. Start engine and verify zero leakage."
- }
- ]
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.