A P0303 diagnostic code on your 2022 Dodge Charger indicates the engine control module has detected repeated misfires in cylinder 3. The 2022 Charger continues with Dodge's range of V6 and V8 powertrains.
Engine Configuration
The 2022 Charger offers the 3.6L Pentastar V6, 5.7L HEMI V8 (with MDS), 6.4L HEMI V8, and supercharged Hellcat variants. Cylinder 3 location varies by engine—driver's side on V8s, left bank rear on the V6.
Typical Causes
- Ignition Coil Degradation: Performance engines stress ignition components
- Spark Plug Wear: Extended intervals may lead to electrode erosion
- MDS Lifter Failure: 5.7L HEMI MDS systems have known failure modes
- Fuel Delivery Problems: Injector clogging or electrical issues
- Valve Train Issues: Lifter or rocker arm problems
Diagnostic Process
Connect a diagnostic scanner to identify your engine and access specific data. Monitor MDS operation on 5.7L models. Test ignition components through swap testing. Check for Stellantis TSBs addressing known issues.
Repair Recommendations
Replace faulty ignition coils with Mopar parts. Follow proper HEMI spark plug procedures. For MDS-related failures, lifter replacement may be required. Address fuel system issues through cleaning or replacement.