A P0302 code on your 2022 Hyundai Kona indicates the engine control module has detected misfires in cylinder 2. The 2022 Kona lineup includes the 2.0L four-cylinder, 1.6L turbocharged, and the high-performance 2.0L turbo in the Kona N. Each powertrain has specific diagnostic considerations.
Powertrain Variety
All Kona gasoline engines are inline-4 with cylinder 2 second from front. The 2.0L uses multi-port injection for simplicity. The 1.6L turbo uses direct injection. The Kona N's 2.0L turbo produces 276 horsepower with track-ready performance. Each engine type has different maintenance requirements.
Naturally Aspirated 2.0L
The 2.0L with port injection avoids direct-injection carbon issues. Standard ignition and fuel system problems are primary misfire causes. This engine is reliable and straightforward to diagnose.
Turbo Engine Considerations
Both turbo engines (1.6L and 2.0L N) use direct injection susceptible to carbon buildup. Boost pressure irregularities affect combustion. The high-performance Kona N operates under significant stress during spirited driving, potentially accelerating component wear.
Symptom Identification
Four-cylinder misfires produce obvious symptoms: rough idle, vibration, and hesitation. The compact Kona's driving experience is significantly affected. Check engine light illumination accompanies the condition.
Diagnostic and Repair Strategy
Identify your engine type. Scan for all codes including boost-related codes. Inspect ignition components. Test fuel system appropriate to injection type. Turbo engines require boost evaluation. Given the newer model year, warranty coverage should apply.