31303495
DENSO 31303495 High Pressure Fuel Injector Volvo XC90 XC60 S90 V60 2.0T Drive-E T5 T6 31465786
31465786, 31336691, 31336692, 0261500366High-Speed Electromagnetic Multi-Hole Micro Solenoid-200 barVehicle & Engine Fitment
Technical Specifications
| Specification | Value |
|---|---|
| System Type | Denso Multi-Hole Laser Direct Gasoline Fuel Injector |
| Operating PressureCore Spec | |
| Spray Geometry | Precision laser-drilled asymmetric spray cone targeting intake swirl |
| Fuel Rail Bolt Torque | 11 N·m (flanged rail bracket fasteners) |
| High Pressure Pipe Torque | 25 N·m (fuel delivery rail pipe union) |
| Solenoid Coil Resistance | 1.7 - 2.1 Ω at 20°C (rapid actuation pulse circuit) |
| Common Fault Codes | P0300 (Random Misfire), P0301-P0304 (Cylinder Misfire), P0171 (System Lean Bank 1) |
| Workshop Precaution | Always fit new Teflon combustion chamber seal rings using expansion mandrel and calibration collet |
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
- [
- {
- "step": 1,
- "title": "Depressurize Fuel System & Remove Air Filter Housing",
- "instruction": "Depressurize fuel rail via diagnostic scan tool command. Remove intake air filter ducting and upper acoustic shield."
- },
- {
- "step": 2,
- "title": "Disconnect Injector Harness & High Pressure Delivery Rail",
- "instruction": "Unclip wiring harness from all four injectors. Loosen high-pressure delivery pipe (25 N·m) and unbolt fuel rail retaining screws (11 N·m)."
- },
- {
- "step": 3,
- "title": "Extract Injectors & Install Replacement Teflon Radial Seals",
- "instruction": "Withdraw direct injectors using slide puller. Clean carbon deposits from cylinder head bores. Install new Teflon seals and resize with calibration sleeve."
- },
- {
- "step": 4,
- "title": "Reinstall Fuel Rail Assembly & Torque Connections",
- "instruction": "Press injectors firmly into ports. Torque rail bolts evenly to 11 N·m. Tighten high pressure line union to 25 N·m. Start engine and verify zero fuel weepage."
- }
- ]
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.