When your 2020 Dodge Challenger displays diagnostic trouble code P0306, the engine control module has detected misfires in cylinder 6. The 2020 Challenger offers V6 and V8 engines, all with six or more cylinders, making P0306 a valid diagnostic code.
2020 Challenger Engine Options
The 2020 Dodge Challenger offers the 3.6-liter Pentastar V6 (305 hp), 5.7-liter HEMI V8 (375 hp), 6.4-liter HEMI V8 (485 hp), and supercharged Hellcat variants. All engines have six or more cylinders.
MDS on HEMI V8
Non-supercharged HEMI V8 engines feature Multi-Displacement System that deactivates cylinders including #6. MDS issues can cause misfire symptoms during mode transitions.
Common Causes
Ignition coil failure, spark plug wear, MDS lifter problems on V8, and fuel injector issues are typical causes.