A P0302 code on your 2022 Jeep Grand Cherokee indicates the engine control module has detected misfires in cylinder 2. The fifth-generation Grand Cherokee launched for 2022 offers the 3.6L Pentastar V6 with eTorque, 5.7L Hemi V8, and 4xe plug-in hybrid. Understanding your specific powertrain guides effective diagnosis.
Diverse Powertrain Options
The 2022 Grand Cherokee's new platform offers various powertrains. The V6 and V8 use port injection avoiding carbon concerns. The 4xe uses a 2.0L turbo with direct injection. Cylinder 2 location differs by engine type—rear bank on V-engines, second from front on the inline-4.
V6 Misfire Causes
The 3.6L V6's port injection provides clean operation. Ignition coil failure, spark plug wear, and fuel injector problems are primary causes. The eTorque mild hybrid adds belt-alternator-starter complexity but doesn't typically cause misfires.
V8 MDS Considerations
The 5.7L Hemi uses Multi-Displacement System for efficiency. MDS can cause cylinder-specific issues if solenoids or lifters malfunction. Standard ignition and fuel system problems also apply.
4xe Hybrid Specifics
The plug-in hybrid's 2.0L turbo faces direct-injection carbon potential and boost system variables. Electric motor coordination adds complexity to diagnosis. Intermittent engine operation affects component wear.
Diagnostic and Repair Approach
Identify powertrain type. Scan for all codes including MDS and hybrid system codes. Inspect ignition components. Test fuel delivery. Given the newer model year, warranty coverage should apply.