The 2022 Dodge Charger continues the muscle sedan tradition with powerful engine options from the efficient V6 to the thundering HEMI V8s. When your Charger displays P0304 indicating a cylinder 4 misfire, engine-specific diagnosis ensures accurate repair.
Understanding P0304 in Your Charger
Cylinder 4 location depends on engine configuration. In the 3.6L Pentastar V6, cylinder 4 is on the rear of the left bank. In HEMI V8 engines (5.7L and 6.4L), cylinder 4 is on the right (passenger) bank. The powertrain control module monitors each cylinder through crankshaft position analysis.
HEMI-Specific Factors
The 5.7L HEMI uses Multi-Displacement System for fuel economy, which can cause misfires when lifters develop issues. The 6.4L HEMI in Scat Pack and SRT models doesn't have MDS. All HEMI engines operate spark plugs under high stress due to large displacement and power output.
Diagnostic Steps
Identify your engine and access cylinder 4 ignition coil accordingly. Inspect spark plug condition—HEMI engines are demanding on plugs. On 5.7L models, monitor whether misfires correlate with MDS activation. Check for intake vacuum leaks.
Resolution Approach
Replace spark plugs with Mopar specifications appropriate for your engine. Test ignition coil output. Address any MDS concerns on 5.7L models. Verify proper oil specification for engines with MDS.