2019 Subaru BRZ Limited, Automatic TransFACTORY OEM SERVICE PROCEDURE

Injector ASSY (FA20/Direct Fuel Injection): Installation

G12586810Courtesy of SUBARU OF AMERICA, INC.
  1. Fuel injector seal installation
    1. Use the engine conditioner to remove the carbon on engine oil on the side surface and seal groove of injector shown in the figure.
      CAUTION:
      • Do not clean the tip portion.
      • Do not use a wire brush etc.
      • If the tip of fuel injector ASSY is bumped or dropped, replace the fuel injector ASSY with a new one.
      G12586811Courtesy of SUBARU OF AMERICA, INC.
    2. Apply engine oil to the inner periphery of SST (guide) and set it on the injector so that the taper surface faces toward the tip side of injector.

      SST 09260-39020Β 

      G12586812Courtesy of SUBARU OF AMERICA, INC.
    3. Install a new fuel injector seal to the SST (holder).

      SST 09260-39020Β 

      CAUTION: When setting the fuel injector seal on the SST (holder), the seal is stretched and it is difficult to correct if the seal is set at an angle.
      G12586813Courtesy of SUBARU OF AMERICA, INC.
    4. Set the SST (holder) with the fuel injector seal to the tip of injector and push down the fuel injector seal with fingers to install it in the injector groove shown in the figure.

      SST 09260-39020Β 

      CAUTION: Make sure the fuel injector seal is completely fitted in the groove for its entire circumference.
      G12586814Courtesy of SUBARU OF AMERICA, INC.
    5. While holding the fuel injector seal (connector side) lightly with the SST (holder), pull up the SST (guide) toward the injector tip side slowly and seat the fuel injector seal in the injector groove.

      SST 09260-39020Β 

      CAUTION: Be careful not to pinch the fuel injector seal between the SST (guide) and injector groove. If it is pinched, replace it with a new one.
      G12586815Courtesy of SUBARU OF AMERICA, INC.
    6. Pull up the SST (guide) toward the injector tip side slowly and hold the SST for 5 sec. or more when the fuel injector seal on the connector side reaches to the straight portion of SST (guide) in order to correct the fuel injector seal.

      SST 09260-39020Β 

      CAUTION: Be careful not to pinch the fuel injector seal between the SST (guide) and injector groove. If it is pinched, replace it with a new one.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.