A P0303 code on your 2023 Ford Mustang indicates that the engine control module has detected cylinder 3 misfires beyond acceptable parameters. This sports car's powerful engines require proper diagnostic attention.
2023 Mustang Powertrain
The 2023 Ford Mustang continues with the 2.3L EcoBoost four-cylinder (310 hp) and 5.0L Coyote V8 (450-486 hp depending on trim). Both deliver exhilarating performance when functioning properly.
EcoBoost Four-Cylinder
The turbocharged four-cylinder's boost system must maintain proper pressure for optimal combustion. With four cylinders, each is critical to smooth power delivery.
Coyote V8
The V8's dual fuel injection (port and direct) helps prevent carbon buildup. Cylinder 3 is on one bank; check bank-specific data during diagnosis.
Warranty Coverage
Your 2023 Mustang is protected by Ford's warranty. Misfire repairs should be covered. Contact your dealer for diagnosis.
Sports Car Performance
The Mustang is built for driving enjoyment. Address misfires to maintain the performance character owners expect.