06E127025AB
HITACHI 06E127025AB Bomba Alta Pressão Audi S4 S5 A6 C7 A7 Q7 3.0T EA837
06E127025AC, 0261520228, HPP0012--150 barAplicações por Veículo e Motor
| Veículo | Motor | Anos |
|---|---|---|
| Audi S4 / S5 B8 B8.5 | Audi / VW / Porsche EA837 3.0L V6 Supercharged TFSI (CGWB / CTUB / CREC) | 2010-2017 |
| Audi A6 C7 / A7 4G8 | Audi / VW / Porsche EA837 3.0L V6 Supercharged TFSI (CGWB / CTUB / CREC) | 2012-2018 |
| Audi Q7 4L / SQ5 8R | Audi / VW / Porsche EA837 3.0L V6 Supercharged TFSI (CGWB / CTUB / CREC) | 2011-2017 |
| Porsche Cayenne / Panamera | Audi / VW / Porsche EA837 3.0L V6 Supercharged TFSI (CGWB / CTUB / CREC) | 2011-2018 |
Especificações Técnicas
| Especificação | Valor |
|---|---|
| Part Number / SKU | 06E127025AB |
| Manufacturer Brand | HITACHI |
| Component Type | Mechanical High Pressure Fuel Pump (HPFP) |
| Engine Application | Audi 3.0L TFSI Supercharged DOHC 24V V6 (EA837 / CTUB / CGWB) |
| Pressão de trabalhoEspec. Principal | |
| Mounting Torque (Flange / Bracket) | 20 N-m (15 lb-ft) |
| Fuel Line / Rail Torque | 25 N-m (18 lb-ft) |
| Códigos de falha comuns | P0087, P0088, P0171, P2293 |
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
- Depressurize Fuel System: Pull fuel pump fuse or disconnect LPFP harness. Crank engine 5-8 seconds until it stalls to drop residual rail pressure below 5 bar.
- Clean Surrounding Cavity: Blow compressed air around cylinder head bore or pump flange cavity to prevent dirt ingress into the fuel rail.
- Lubricate & Fit Seals: Inspect Teflon combustion seals or O-rings. Coat lightly with clean motor oil (do not use grease) to avoid tearing during insertion.
- Torque to Factory Specification: Hand-thread bolts evenly. Tighten mounting fasteners to 20 N-m (15 lb-ft), and torque fuel line fittings to 25 N-m (18 lb-ft).
- Prime & Leak Check: Cycle ignition to RUN position 3 times (5 seconds each) to build low-side pressure. Inspect fittings for leaks before starting engine.
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.