The P0302 diagnostic code on your 2024 Subaru Crosstrek indicates cylinder 2 is experiencing misfires detected by the engine control module. The third-generation Crosstrek offers two engine options: the 2.0L boxer four-cylinder or the larger 2.5L boxer. Both feature Subaru's horizontally opposed design with direct injection.
Engine Options
The 2.0L FB20D produces 152 horsepower while the 2.5L FB25D produces 182 horsepower. Both are boxer (flat-four) engines with cylinder 2 on the passenger side. Direct injection is standard on both engines. The compact subcompact SUV benefits from the boxer layout's low center of gravity.
Common Misfire Causes
Direct injection carbon buildup can develop on intake valves over time. Ignition coil failure affects spark delivery. Spark plug wear or the horizontal position's effect on oil drainage can cause fouling. Fuel injector problems affect cylinder-specific fuel delivery on these GDI engines.
Symptom Recognition
Boxer four-cylinder misfires are pronounced in the compact Crosstrek. The distinctive flat-four sound changes noticeably. Rough idle, vibration, and hesitation affect the adventure-vehicle driving experience. Check engine light accompanies detected misfires.
Diagnostic Steps
Identify your engine type. Scan for all codes and freeze frame data. Access cylinder 2 on the passenger bank. Test ignition components. Borescope inspect intake valves. Test fuel injector operation. Compression testing verifies mechanical health.
Warranty Coverage
Your 2024 Crosstrek is covered under Subaru's warranty. Document symptoms and have dealer diagnosis for proper coverage.