Step-by-step Installation of Precision Turbo Fuel Injectors on a Subaru Fa20

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Installing Precision Turbo Fuel Injectors on a Subaru FA20 can enhance performance significantly. This guide provides a step-by-step approach to ensure a successful installation.

Tools and Materials Needed

  • Precision Turbo Fuel Injectors
  • Socket set
  • Torque wrench
  • Fuel line removal tool
  • Shop towels
  • Safety glasses
  • Engine oil

Safety Precautions

Before starting the installation, ensure you take the following safety precautions:

  • Always wear safety glasses to protect your eyes.
  • Work in a well-ventilated area to avoid inhaling fumes.
  • Disconnect the battery to prevent electrical shorts.
  • Allow the engine to cool down completely before starting.

Step 1: Prepare the Vehicle

Begin by preparing your Subaru FA20 for the installation:

  • Park the vehicle on a level surface and engage the parking brake.
  • Open the hood and remove any components obstructing access to the fuel injectors.
  • Disconnect the negative terminal of the battery.

Step 2: Relieve Fuel System Pressure

To safely relieve fuel system pressure, follow these steps:

  • Locate the fuel pump relay in the fuse box and remove it.
  • Start the engine and let it run until it stalls, indicating that fuel pressure is relieved.
  • Turn off the ignition and disconnect the fuel lines using the fuel line removal tool.

Step 3: Remove Old Fuel Injectors

Now, you can remove the old fuel injectors:

  • Locate the fuel rail and remove the bolts securing it.
  • Carefully lift the fuel rail to access the fuel injectors.
  • Disconnect the electrical connectors from each injector.
  • Pull the old injectors out of the fuel rail gently.

Step 4: Install Precision Turbo Fuel Injectors

With the old injectors removed, it’s time to install the new Precision Turbo Fuel Injectors:

  • Apply a small amount of engine oil to the O-rings of the new injectors.
  • Insert the new injectors into the fuel rail, ensuring they fit snugly.
  • Reconnect the electrical connectors to each injector.
  • Carefully position the fuel rail back onto the engine and secure it with the bolts.

Step 5: Reconnect Fuel Lines and Battery

Once the injectors are installed, reconnect the fuel lines and battery:

  • Reconnect the fuel lines to the fuel rail.
  • Reinstall the fuel pump relay in the fuse box.
  • Reconnect the negative terminal of the battery.

Step 6: Test the Installation

Before taking your Subaru for a drive, it’s crucial to test the installation:

  • Turn the ignition key to the “ON” position without starting the engine to prime the fuel system.
  • Check for any fuel leaks around the injectors and fuel lines.
  • If no leaks are detected, start the engine and let it idle for a few minutes.

Step 7: Final Checks and Clean Up

After testing, complete the final checks:

  • Ensure all tools and materials are removed from the engine bay.
  • Close the hood securely.
  • Take the vehicle for a short test drive to ensure everything is functioning properly.

Conclusion

Installing Precision Turbo Fuel Injectors on your Subaru FA20 can lead to improved performance and efficiency. By following these steps carefully, you can ensure a successful installation and enjoy the benefits of enhanced fuel delivery.