BOSCH
JR3Z-9F593-A
View Specs
SolenoidGasoline Direct Injection (GDI)Euro 56
BOSCH JR3Z-9F593-A GDI Fuel Injector Ford Mustang GT Bullitt F-150 5.0L Coyote V8 0261500412
Engine Platform:Ford 5.0L Coyote V8 (Gen 3 PFDI Dual-Fuel Ti-VCT) →
OE REFERENCE
JR3Z-9F593-B, 0261500413, CM5278CONTROL VALVE
-NOZZLE
-RAIL PRESSURE
200 barEMISSIONEuro 5 / Euro 6
WARRANTY12 Months
03
Technical Specifications
| Specification | Value |
|---|---|
| Part Number / SKU | JR3Z-9F593-A |
| Manufacturer Brand | BOSCH |
| Component Type | Direct Fuel Injector |
| Engine Application | Ford 5.0L Coyote Ti-VCT Dual-Fuel DOHC 32V V8 (Gen 3 Coyote) |
| Operating PressureCore Spec | |
| Mounting Torque (Flange / Bracket) | 10 N-m (89 lb-in) |
| Fuel Line / Rail Torque | 22 N-m (16 lb-ft) |
| Primary Diagnostic Fault Codes | P0300, P0301, P0171, P0172 |
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Installation Tips
- 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 10 N-m (89 lb-in), and torque fuel line fittings to 22 N-m (16 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.
05
Diagnostic Trouble Codes & Fault Protocols
Common diagnostic trouble codes (DTCs) triggered when this common rail injector experiences wear, circuit faults, or calibration drift:
P0087Critical
Fuel Rail / System Pressure Too Low
Excessive internal backleak from worn control valve seats drops common rail pressure below target under engine load.
P0201 - P0208High
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.
P0300 / P0301+High
Cylinder Misfire & Balancing Deviation
Carbon-clogged nozzle spray holes or missing IMA calibration causes uneven cylinder contribution. Recode ECM and verify washer seating.
P0088High
Fuel Rail / System Pressure Too High
Spill line backpressure or stuck metering valve prevents rail depressurization, creating overpressure risks under load.
WORKSHOP PROTOCOLS
Technical Diagnostic & Service Protocols
Authoritative field procedures, diagnostic testing thresholds, and service SOPs for this assembly.
COMMON RAIL WORKSHOP DIAGNOSTICS
Read Technical ProtocolFuel Metering Valve (IMV/SCV) Diagnostics Guide
OBD-II DIAGNOSTIC PROTOCOL
Read Technical ProtocolP0087 Low Rail Pressure Diagnosis Guide
DIESEL WORKSHOP DIAGNOSTIC SOP
Read Technical ProtocolCylinder Balance & Injector Deviation Guide
ASSEMBLY & INSTALLATION PROTOCOL
Read Technical Protocol