The 2023 Ford Bronco Sport features 4-cylinder EcoBoost engines—the 1.5L 3-cylinder or 2.0L 4-cylinder. These configurations contain no more than 4 cylinders. When P0306: Cylinder 6 Misfire Detected displays, you're facing an anomalous code.
Bronco Sport Engine Options
The 2023 Bronco Sport continues with turbocharged 3-cylinder and 4-cylinder engines offering impressive capability for its size. No V6 option exists or has ever been offered, meaning cylinder 6 is not present in any Bronco Sport configuration.
Sources of Erroneous P0306
Diagnostic tool confusion between Bronco Sport and full-size Bronco generates incorrect codes. EcoBoost communication protocols may confuse generic scanners. Aftermarket OBD devices create potential data conflicts. ECU software glitches can produce nonsensical cylinder codes.
Diagnostic Protocol
Clear all codes and drive through various conditions. Use Ford IDS or professional equipment for accurate results. Inspect the OBD-II port for issues. Remove aftermarket devices temporarily. Check for legitimate misfire codes matching your engine's cylinder count (P0301-P0304 for 4-cyl, P0301-P0303 for 3-cyl).
Technician Awareness
Ensure your service provider understands the Bronco Sport has only 3 or 4-cylinder engines. This differs from the full-size Bronco's V6 option, where P0306 would be a valid code.