A P0302 code on your 2022 Ram 1500 indicates the engine control module has detected misfires in cylinder 2. The 2022 Ram 1500 offers the 5.7L Hemi V8 with eTorque and the 3.0L EcoDiesel V6. Each powertrain has specific diagnostic considerations for misfire resolution.
2022 Engine Options
The 5.7L Hemi produces 395 horsepower with Multi-Displacement System and eTorque mild hybrid. The 3.0L EcoDiesel delivers 260 horsepower with excellent torque. Cylinder 2 is on the passenger bank for the V8 and rear bank for the V6.
Hemi MDS Considerations
The 5.7L uses cylinder deactivation that can cause misfires if MDS components fail. Lifter or solenoid issues cause problems during mode transitions. eTorque doesn't directly cause misfires but adds electrical complexity.
EcoDiesel Specifics
The diesel V6 has no spark plugs—P0302 indicates fuel injection or compression issues. Injector failure, low fuel pressure, or glow plug problems are typical causes.
Symptom Recognition
The full-size truck displays rough idle, vibration, and hesitation with misfires. Towing capability is compromised. Check engine light accompanies the condition.
Diagnostic and Repair Approach
Identify engine type. Scan for all codes including MDS or diesel-specific codes. Inspect ignition components on gasoline engine. Evaluate fuel system on diesel. Given the newer model year, warranty coverage should apply.