The 2022 Dodge Challenger continues the muscle car tradition with engine options ranging from the efficient V6 to thundering supercharged V8s. When your Challenger displays P0304 indicating a cylinder 4 misfire, understanding your specific powertrain guides effective diagnosis.
Understanding P0304 in Your Challenger
Cylinder 4 location depends on engine configuration. In the 3.6L Pentastar V6, cylinder 4 is on the rear of the left bank. In all HEMI V8 variants, 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 improved fuel economy, which can cause misfires when lifters develop problems. Larger HEMI variants (6.4L and 6.2L supercharged) don't use MDS. All HEMI engines stress spark plugs due to high power output.
Diagnostic Steps
Identify your engine and access cylinder 4 ignition coil accordingly. Inspect spark plug condition—HEMI engines demand quality plugs. On 5.7L models, monitor whether misfires correlate with MDS activation during cruise.
Resolution Approach
Replace spark plugs with Mopar specifications for your engine. Test ignition coil output. Address any MDS concerns on 5.7L models. Verify correct oil specification for MDS-equipped engines.