23100-25010
DENSO 23100-25010 D-4S High Pressure Fuel Pump Toyota Camry RAV4 Avalon Lexus ES 250 2.5L Dynamic Force A25A-FKS 2310025010
23100-F0010, GDP512Integrated High-Speed Digital Flow Control Solenoid-200 barVehicle & Engine Fitment
| Vehicle | Engine | Years |
|---|---|---|
| Toyota Camry (XV70) | Toyota / Lexus 2.0L & 2.5L Dynamic Force D-4S (A25A-FKS / A25A-FXS / M20A-FKS) | 2018-2024 |
| Toyota RAV4 (XA50) | Toyota / Lexus 2.0L & 2.5L Dynamic Force D-4S (A25A-FKS / A25A-FXS / M20A-FKS) | 2019-2024 |
| Lexus ES 250 | Toyota / Lexus 2.0L & 2.5L Dynamic Force D-4S (A25A-FKS / A25A-FXS / M20A-FKS) | 2021-2024 |
Technical Specifications
| Specification | Value |
|---|---|
| System Type | Toyota D-4S Dual Injection (Direct & Port) 200-bar System |
| Operating PressureCore Spec | |
| Pump Mechanism | Camshaft Driven Single-Piston Plunger Mechanical Pump |
| Mounting Flange Bolt Torque | 21 N·m (15 lb-ft) flange bolts |
| Fuel Line Nut Torque | 30 N·m (22 lb-ft) high-pressure fuel pipe union nut |
| Drive Interface | Roller Lifter Tappet with Hardened Contact Face |
| Flow Control Solenoid | Integrated High-Speed Pulse-Width Modulated Solenoid Actuator |
| Manufacturer | Denso (Tier-1 OEM for Toyota Motor Corporation) |
| Denso Production Reference | 23100-25010 / GDP512 |
Matched High-Pressure Fuel Pump (Fuel Circuit Assembly)
Operates on the same high-pressure rail circuit. When troubleshooting low rail pressure (DTC P0087), verify pump volumetric delivery before replacing injectors.
Installation Tips
- Never reuse high-pressure fuel pipes: Toyota mandates replacement of steel fuel delivery pipes whenever loosened to prevent fuel spray hazards.
- Inspect roller lifter bucket: A scored or worn roller tappet damages the camshaft drive lobe, necessitating expensive camshaft replacement.
- Verify engine oil for fuel dilution: A failing internal pump seal weeps fuel into the timing cover, causing oil level rise and bearing wear.
- Prime fuel circuit prior to cranking: Turn ignition ON for 5 seconds 3 times to prime low-pressure feed and purge air pockets.
Diagnostic Trouble Codes & Fault Protocols
Common diagnostic trouble codes (DTCs) triggered when this common rail injector experiences wear, circuit faults, or calibration drift:
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.
Technical Diagnostic & Service Protocols
Authoritative field procedures, diagnostic testing thresholds, and service SOPs for this assembly.