When your 2022 Ford Edge displays the P0305 code, the powertrain control module has detected repeated misfires in cylinder 5. The 2022 Edge is available with the 2.0L EcoBoost four-cylinder or the 2.7L EcoBoost V6 (Edge ST). P0305 is valid only on the V6-equipped Edge ST, as the four-cylinder engine has only cylinders numbered 1-4.
2022 Edge Engine Options
The 2022 Edge continues with two engine choices. The 2.0L EcoBoost I-4 produces 250 horsepower in standard Edge trims (SE, SEL, Titanium). The Edge ST receives the 2.7L EcoBoost twin-turbo V6 with 335 horsepower. Verify your engine configuration—if you have the four-cylinder, P0305 is anomalous.
Cylinder 5 on the 2.7L V6
Ford's 2.7L EcoBoost V6 positions cylinder 5 on the passenger side bank toward the rear. This engine uses twin turbochargers and direct injection, requiring properly specified components and regular maintenance for reliable performance.
Common Causes
Spark plug wear is the most frequent cause, especially if the ST is driven enthusiastically. Ignition coil failure can occur individually at cylinder 5. The direct injection system makes this engine susceptible to carbon buildup on intake valves over time. Boost system leaks can cause inconsistent air delivery to cylinders. Fuel injector issues, while less common, can cause lean misfires.
Diagnostic Steps
Confirm your Edge is the ST model with V6. Access cylinder 5's spark plug on the passenger side rear and inspect for wear or fouling. Test the ignition coil. Check for boost leaks. Review freeze frame data to understand operating conditions when the misfire was detected.