Precision Fuel Injector for Subaru Boxer Engines

Why this part is needed

In a Subaru petrol boxer, accurate fuel delivery is critical. This fuel injector meters and atomizes fuel into a fine mist so each cylinder gets the right dose at the right time. The result is smooth idle, crisp throttle, strong mid‑range, better economy, and clean emissions. A consistent spray pattern keeps cylinders balanced and helps prevent knock.

How it works

The ECU sends a pulse to a high-speed solenoid. The needle lifts for milliseconds, allowing pressurized fuel to pass through micro-orifices and form a targeted cone toward the intake port. Calibrated flow, correct coil resistance, and ethanol‑safe seals keep trims stable. An internal filter basket traps debris; Viton O‑rings lock out air and fuel leaks. ⛽

What happens if it’s broken

Expect hard starts, rough idle, hesitation, misfires, fuel smell, poor MPG, and black or wet plugs. Lean or rich running can overheat pistons, wash cylinder walls, dilute oil, and damage the catalytic converter. Extended driving may trigger the MIL and even limp mode.

Quality notes

New, flow‑matched, OEM‑grade, plug‑and‑play. Bench tested at OE pressure for spray, leakage, and coil resistance. Flush the rail before install; lubricate O‑rings and replace all seals for a perfect fit.

Compatibility

• Legacy
• Forester
• Wrx/Levorg
• Wrx