The 2024 Dodge Hornet continues with turbocharged 4-cylinder engine options exclusively, including the standard 2.0-liter turbo and the R/T plug-in hybrid variant. A P0305 diagnostic trouble code indicating cylinder 5 misfire presents a diagnostic puzzle since this compact SUV only contains a four-cylinder engine.
The P0305 Code Contradiction
Standard OBD-II code P0305 indicates "Cylinder 5 Misfire Detected," but the Hornet's turbocharged engine has cylinders numbered only 1 through 4 in its inline configuration. This code appearing suggests a diagnostic system anomaly requiring investigation.
2024 Hornet Engine Specifications
The Hurricane-based turbocharged 4-cylinder produces 268 horsepower in the GT variant and combines with electric motors in the R/T PHEV. Both versions use inline-4 architecture with sophisticated engine management calibrated for four-cylinder operation.
Investigating the Anomalous Code
Proper diagnosis requires Stellantis diagnostic equipment to analyze actual misfire counter data for each of the four physical cylinders. The technician should determine whether real misfires are occurring while being reported incorrectly, or if this is purely a software or communication error.
Potential System Issues
Erroneous cylinder 5 codes on 4-cylinder vehicles may indicate ECU software issues, control module communication errors, aftermarket device interference, or in rare cases, a malfunctioning engine control module.