A P0302 code on your 2024 Subaru Outback indicates the engine control module has detected misfires in cylinder 2. The sixth-generation Outback offers two engine options: the 2.5L naturally aspirated boxer four-cylinder or the 2.4L turbocharged boxer. These horizontally opposed engines have unique characteristics affecting misfire diagnosis.
Boxer Engine Architecture
Subaru's boxer (flat-four) engines position cylinders horizontally opposed rather than inline or V-configuration. Cylinder 2 is on the passenger side (right) bank. This layout provides a low center of gravity but creates different access considerations than conventional engines. Direct injection is used on both engines.
2.5L Naturally Aspirated
The base 2.5L produces 182 horsepower with direct injection. Common misfire causes include ignition coil failure, spark plug issues, direct injection carbon buildup, and fuel injector problems. The horizontal cylinder position can affect oil drainage and spark plug fouling patterns.
2.4L Turbo Considerations
The turbocharged 2.4L produces 260 horsepower with higher cylinder pressures. Boost irregularities add diagnostic variables. The turbo engine's increased stress can accelerate component wear. Both engines share the boxer layout with its specific access challenges.
Symptom Recognition
Boxer engine misfires produce a distinctive rough idle. The flat-four's characteristic sound changes noticeably with cylinder 2 misfiring. Vibration and hesitation affect the adventure-vehicle driving experience. Check engine light accompanies detected misfires.
Warranty Coverage
Your 2024 Outback is covered under Subaru's warranty. Document symptoms and have dealer diagnosis for proper warranty coverage on new vehicles.