The 2020 Dodge Challenger muscle car offers the 3.6-liter Pentastar V6 in SXT models and various Hemi V8 engines including the 5.7L, 6.4L, and supercharged options in performance variants. All engine configurations include cylinder 5 as a legitimate position. A P0305 diagnostic trouble code indicates misfire detection at this cylinder.
Understanding P0305 on Challenger Engines
The P0305 code signifies "Cylinder 5 Misfire Detected." On all Challenger engines, cylinder 5 is on the driver's side (left bank). Whether V6 or V8, this cylinder plays an important role in engine smoothness and power delivery.
V6 SXT Diagnosis
The Pentastar V6 producing 305 horsepower is a reliable engine. Cylinder 5 misfires typically result from worn spark plugs, failing ignition coil, fuel injector issues, or on direct injection variants, carbon buildup affecting intake valve airflow.
Hemi V8 Variants
The 5.7L Hemi R/T uses MDS cylinder deactivation (not affecting cylinder 5 directly). The 6.4L 392 Scat Pack lacks MDS for purer driving feel. Supercharged Hellcat and Redeye variants produce extreme power requiring premium components.
Muscle Car Duty Cycle
Challengers are often driven enthusiastically, subjecting engines to higher stress. Hard acceleration, track use, and spirited driving accelerate ignition component wear. Quality maintenance becomes essential.