A P0303 code on your 2024 Toyota 4Runner indicates that the engine control module has detected cylinder 3 misfires beyond acceptable parameters. The completely redesigned 4Runner features all-new powertrains.
2024 4Runner: Complete Redesign
The 2024 Toyota 4Runner debuts a new generation with a 2.4L turbocharged four-cylinder (275 hp) and available i-FORCE MAX hybrid (326 hp), replacing the previous naturally aspirated V6.
2.4L Turbo Four-Cylinder
The new turbo engine delivers modern efficiency with strong torque. With only four cylinders, each contributes 25% of power. Cylinder 3 misfires significantly affect smooth operation.
i-FORCE MAX Hybrid
The hybrid variant adds electric motor assistance for enhanced capability. Misfires affect the combustion engine specifically while electric power supplements overall output.
Turbo System Considerations
The turbocharger increases cylinder pressure for more power. Boost system integrity is essential for proper combustion. Check for boost leaks during diagnosis.
Warranty Coverage
Your 2024 4Runner is protected by Toyota's warranty. Misfire repairs should be covered. Contact your dealer for diagnosis.