HP4 / 1VD Injector Pump Upgrade Kit – Suits 1KD-FTV Engines

✅ What’s Included:

• Adapter shaft & Hardware Kit
• 3D Printed Drilling Jig for Perfect Fitment
• Genuine High-Pressure Pump-to-Rail Fuel Line
• Optional: Supply with or without HP4/1VD Pump (New or BYO)
  
  Note: Oil cooler modification required (cutting and welding aluminium), and fuel line must be bent to suit.

🧰 Installation Overview:

• Engine-in installation possible (easier during rebuild with timing case removed)
• Includes jig for accurate drilling & tapping of new pump mount holes
• Oil cooler must be modified to clear larger pump:
  • DIY: Instructions provided for self-modification
• Fuel temp sensor wire extension required (solder & heat shrink recommended)

💡 Pump Options:

• ✅ Brand New Genuine Denso Pump
  
  
• ✅ Kit Only – Supply Your Own Pump

Note: If supplying your own pump, the pump shaft must be trimmed and woodruff key removed — full instructions included.

🔧 Tuning Required:

After installation, an SCV (Suction Control Valve) relearn must be completed with a scan tool. Professional tuning is highly recommended to ensure correct fuel rail pressure and prevent over-fuelling.

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