A P0302 code on your 2023 Ford Mustang signals that the PCM detected misfires in cylinder 2. The 2023 was the final year of the S550 generation, offering the 2.3L EcoBoost and 5.0L Coyote V8. Warranty coverage should apply for most issues.
2023 Mustang Powertrains
The 2023 Mustang offered the 2.3L High Performance EcoBoost 4-cylinder (315 hp) and the 5.0L Coyote V8 (450-480 hp depending on trim). Both engines use coil-on-plug ignition allowing individual cylinder diagnosis.
Warranty Status
Your 2023 Mustang should still be under Ford's warranty—3-year/36,000-mile basic and 5-year/60,000-mile powertrain coverage. Engine misfire qualifies for warranty repair unless caused by modifications or neglect.
Performance Driving Considerations
Mustangs see spirited driving and track use. While this doesn't void warranty for defects, it can accelerate component wear. Modified vehicles may have warranty complications depending on the modifications.
Diagnostic Approach
For warranty-covered vehicles, dealer diagnosis ensures proper documentation. If pursuing DIY diagnosis, the coil swap test efficiently identifies ignition failures on both engine types.