The P0304 diagnostic code indicates your 2020 Chevrolet Camaro has detected consistent misfires in cylinder 4. With three distinct engine options available, identifying your specific powertrain is essential for accurate diagnosis and effective repair of this performance-critical combustion problem.
Understanding P0304 in the 2020 Camaro
The 2020 Camaro offers the 2.0L turbocharged four-cylinder, 3.6L V6, and 6.2L V8 engines. Cylinder 4 location varies significantly: on the turbo four it's the rearmost cylinder, on the V6 it's on the rear bank, and on the V8 it's on the right bank toward the rear. Performance driving demands precise combustion, making misfire resolution particularly important in this sports car.
Engine-Specific Misfire Causes
The 2.0L turbo faces boosted ignition demands requiring quality components. The 3.6L V6 has direct injection carbon accumulation concerns. The 6.2L V8 in SS models may have Active Fuel Management (certain years) adding lifter considerations. All engines experience standard ignition component wear accelerated by performance driving that subjects systems to higher stress.
Performance-Focused Diagnostics
Identify your engine configuration before diagnosis. Consider driving style—track days and spirited driving accelerate component wear. Retrieve codes and freeze frame data noting high-RPM or high-load conditions when misfires occurred. Test ignition system components with attention to performance-grade specifications. Verify fuel delivery maintains adequate pressure under demanding conditions.
Repair Approaches
Install performance-grade spark plugs appropriate for your engine and driving style. Replace ignition coils showing degraded output. Address fuel system restrictions. For V8 models with AFM, consider lifter system inspection if valve train noise accompanies misfires.