0261520134
BOSCH 0261520134 Pompa Alta Pressione Ford 2.0L 2.3L EcoBoost
EJ7Z-9350-A, EJ7E-9D376-AA, EJ7E-9D376-AB, EJ7E-9D376-ACIntegrated Pulse-Width Modulated Spill Valve Solenoid-200 barPanoramica Prodotto
The Bosch 0261520134 (Ford OE EJ7Z-9350-A / EJ7E-9D376-AA) is the genuine original equipment high-pressure fuel pump for Ford 2.0L and 2.3L EcoBoost turbocharged engines. Driven by a dedicated camshaft lobe via a roller follower, this Bosch HDP-5 compact single-piston pump generates up to 200 bar (2900 psi) rail pressure. Commonly installed on the Ford Mustang 2.3L EcoBoost, Focus RS, and Explorer, it features an integrated electronic spill control valve. Typical failure signs include extended cold start crank times, hesitation above 4500 RPM, and DTC P0087.
HIGH-RPM FUEL CUT & ROLLER TAPPET INSPECTION: On tuned or high-boost Ford 2.3L EcoBoost engines (Mustang and Focus RS), high-pressure rail pressure collapse under full load drops fuel delivery below 50 bar, triggering sudden boost cut, misfire DTC P0300, and lean condition P0171. Inspect the camshaft roller tappet (Ford OE AG9Z-6C535-A) for scoring; never install a new pump without lubricating the plunger shaft and verifying roller rotation.
Applicazioni Veicolo e Motore
Specifiche Tecniche
| Specifica | Valore |
|---|---|
| Pump Generation | Bosch HDP-5 Radial-Piston High-Pressure Fuel Pump |
| Operating Rail PressureSpecifica Chiave | |
| Cam Drive Type | Exhaust Camshaft Lobe via Roller Follower (Ford AG9Z-6C535-A) |
| Flow Regulation Control | Integrated Pulse-Width Modulated Spill Valve Solenoid |
| Pump Flange Mounting Torque | 13 N·m (Even cross-pattern) |
| High Pressure Pipe Flare Nut Torque | 32 N·m |
| Tightening Torque | 32 N·m |
| Coppia serraggio staffa | 13 N·m |
| Primary OEM Reference | EJ7Z-9350-A, EJ7E-9D376-AA, EJ7E-9D376-AB |
| Engine Emission Compliance | Euro 6 / LEV III / Tier 3 Bin 30 |
| Standard Industrial Warranty | 12 Months / Unlimited Mileage |
| Pressione di esercizioSpecifica Chiave |
Pompa alta pressione abbinata (Gruppo circuito carburante)
Funziona sullo stesso circuito ad alta pressione Common Rail. In caso di bassa pressione rail (P0087), verificare la portata della pompa prima di sostituire gli iniettori.
Istruzioni di montaggio
Attrezzatura necessaria: Line flare wrench for high-pressure fuel rail pipe nut, 8mm and 10mm sockets with ratchet and extension, Torque wrench calibrated for 10-35 N·m, Clean engine oil or assembly lubricant for roller follower and seal, Eye protection and absorbent rags for high-pressure fuel relief
- Disconnect battery negative terminal; remove fuel pump fuse and crank engine to bleed static fuel pressure.
- Wrap clean cloth around high-pressure fuel line fitting; loosen flare nut gradually to relieve remaining pressure.
- Disconnect electrical connector from HPFP volume control solenoid.
- Disconnect low-pressure fuel supply line quick-connect coupler.
- Loosen the two pump mounting bolts evenly half-turn by half-turn to relieve cam spring load smoothly.
- Remove pump assembly; extract roller follower AG9Z-6C535-A and inspect for flat spots or needle bearing play.
- Clean cylinder head mating surface; lubricate new pump Viton O-ring with fresh engine oil.
- Rotate engine until camshaft driving lobe is on base circle (lowest lift point).
- Install lubricated roller follower into bore; seat pump body square against cylinder head.
- Torque mounting bolts alternately in progressive steps to 13 N·m.
- Thread high-pressure steel line flare nut hand-tight; torque to 32 N·m.
- Reconnect low-pressure fuel hose and electrical plug; cycle ignition 3 times and check for leaks.
- Counter-Holding Pipe Nut: Always counter-hold the pump body outlet fitting when tightening the high-pressure steel line flare nut to prevent fitting damage.
- Base Circle Positioning: Rotate engine to lowest camshaft lobe position before installing pump to avoid stripping aluminum head threads.
- Roller Follower Renewal: Replace the roller follower during every pump renewal to ensure smooth operation and prevent warranty voiding.
Codici Guasto (DTC) e Protocolli Diagnostici
Codici guasto diagnostici (DTC) comuni generati quando questo iniettore common rail presenta usura, problemi ai circuiti o scostamenti:
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.
Riferimenti incrociati e compatibilità
Codici gemelli, varianti della stessa piattaforma e incompatibilità note.
Protocolli Tecnici di Diagnosi & Assistenza
Procedure d'officina verificate, valori soglia di test e linee guida operative per questo assieme.