The Dodge Hornet compact SUV is powered exclusively by turbocharged 4-cylinder engines, offering either the 2.0-liter turbo producing 268 horsepower or the plug-in hybrid variant with similar displacement. When a P0305 diagnostic trouble code appears indicating a cylinder 5 misfire, this represents an anomalous diagnostic situation requiring specialized investigation.
Understanding the P0305 Anomaly
The P0305 code translates to "Cylinder 5 Misfire Detected" in standard OBD-II terminology. However, the Hornet's turbocharged 4-cylinder engine contains only cylinders numbered 1 through 4. The appearance of this code indicates a diagnostic system irregularity rather than an actual fifth cylinder malfunction.
Hornet Engine Configuration
Dodge's Hornet uses a 2.0-liter turbocharged 4-cylinder engine derived from the Alfa Romeo Tonale platform. The inline-4 configuration uses a standard 1-3-4-2 firing order, and the engine management system is calibrated specifically for four-cylinder operation.
Diagnostic Protocol for Anomalous Code
When encountering P0305 on your 4-cylinder Hornet, a qualified technician should use Stellantis diagnostic equipment to verify actual misfire counter data for cylinders 1-4. The code storage mechanism and any software calibration needs should be investigated.
Possible Causes for Erroneous Code
This anomalous code may result from ECU software requiring updates, control module communication errors, aftermarket device interference, or battery voltage fluctuations during turbo boost conditions.