A P0302 code on your 2022 Mazda CX-5 indicates the engine control module has detected misfires in cylinder 2. The CX-5 offers the Skyactiv-G 2.5L naturally aspirated or Skyactiv-G 2.5T turbocharged four-cylinder. Each engine has specific diagnostic considerations for misfire resolution.
Skyactiv Technology
Mazda's Skyactiv engines use high compression ratios and direct injection for efficiency. The 2.5L produces 187 horsepower while the turbo delivers up to 256 horsepower. Both are inline-4 with cylinder 2 second from the timing chain end.
Common Misfire Causes
Direct injection carbon buildup can develop on intake valves over time. Ignition coil degradation affects spark delivery. Spark plug wear reduces ignition energy. The high-compression design is sensitive to proper ignition timing. Turbo models add boost variables.
Symptom Recognition
The compact SUV displays rough idle, vibration, and hesitation with misfires. Skyactiv's smooth character becomes disrupted. Check engine light accompanies the condition.
Diagnostic and Repair Approach
Identify engine type. Scan for all codes. Inspect ignition components on cylinder 2. Test fuel system. Verify boost on turbo models. Given the newer model year, warranty coverage should apply to defect-related issues.