Toyota Corolla Fuel Pressure Regulator 04226-0L030 294200-0300 Precise Fuel Control Replacement

When your Toyota Corolla has rough idle, weak acceleration, cold-start difficulties or exhaust emits black smoke, usually indicates internal membrane or spring failure in the fuel pressure regulator valve causing unstable fuel pressure. The valve precisely controls fuel system pressure to ensure constant injector pressure for stable operation and fuel economy. OEM number 04226-0L030 (electronic parts 294200-0300); fits Corolla 2000-2007 1.6L/1.8L. Replace seal ring and ensure valve orientation aligns with rail interface to avoid oil leaks or pressure anomalies.