The P0302 diagnostic code on your 2022 Dodge Challenger indicates that the powertrain control module has detected cylinder 2 misfires exceeding acceptable parameters. This iconic American muscle car requires proper diagnosis to maintain its legendary performance.
2022 Challenger Powertrain Options
The 2022 Dodge Challenger offered an impressive range of engines: the 3.6L Pentastar V6, 5.7L HEMI V8, 6.4L HEMI V8, and supercharged Hellcat variants producing over 700 horsepower. Each engine requires a tailored diagnostic approach.
HEMI Multi-Displacement System
The 5.7L and 6.4L HEMI V8 engines feature MDS (Multi-Displacement System) cylinder deactivation. Cylinder 2 is one of the cylinders that can be deactivated during light-load operation. MDS lifter failures are documented and can cause persistent cylinder-specific misfires.
High-Performance Engine Demands
Whether naturally aspirated or supercharged, Challenger engines experience significant thermal and mechanical stress. Spark plugs must handle high combustion pressures and temperatures. Using the correct heat range and quality components is essential.
Ignition System Focus
All Challenger engines use coil-on-plug ignition systems with individual coils for each cylinder. This design allows easy isolation of cylinder 2 components for testing. Swap testing confirms whether the coil or plug is responsible.
Fuel Delivery Analysis
Direct injection (V6) and port injection (HEMI) systems deliver fuel differently. Both can experience injector issues causing cylinder-specific misfires. Monitor fuel trims and injector operation during diagnosis.