The 2022 Infiniti Q50 sport sedan features the 3.0-liter twin-turbocharged V6 engine (VR30DDTT) producing 300-400 horsepower depending on tune. This six-cylinder engine includes cylinder 5 as a legitimate position. A P0305 diagnostic trouble code indicates the engine management system has detected a misfire at this cylinder.
Understanding P0305 on Q50
The P0305 code signifies "Cylinder 5 Misfire Detected." On Infiniti's 3.0L twin-turbo V6, cylinder 5 is positioned on one bank of the V configuration. Misfires affect the sporty, responsive power delivery expected from this performance sedan.
VR30DDTT Engine Technology
The twin-turbo V6 delivers impressive power through forced induction. The turbochargers create boost pressure that stresses ignition components. Spark plugs in boosted applications require more frequent attention.
Common Misfire Causes
Cylinder 5 misfires on the Q50 typically result from ignition coil failure under boost stress, spark plug wear, fuel injector issues, or carbon buildup on intake valves from direct injection.
Sport Sedan Standards
The Q50's performance focus demands crisp, responsive power delivery. Any misfire diminishes the driving experience enthusiasts expect.