When your 2022 Nissan Pathfinder displays the P0304 code, the engine control module has detected recurring misfires in cylinder 4. As the first year of the redesigned fifth-generation Pathfinder, understanding the updated platform helps target diagnosis for effective repair of this V6 combustion problem.
Understanding P0304 in the 2022 Pathfinder
The redesigned 2022 Pathfinder features an updated 3.5L V6 producing 284 horsepower, now paired with a 9-speed automatic transmission replacing the previous CVT. The V6 positions cylinder 4 on the rear bank toward the firewall. Nissan's engine management monitors crankshaft velocity to identify the specific cylinder experiencing combustion irregularities.
V6 Misfire Causes
The naturally aspirated V6 faces standard ignition wear patterns. Spark plug electrodes erode from normal operation. Ignition coils degrade through heat cycling. Direct fuel injection creates conditions for carbon accumulation on intake valves over time. The rear bank location affects component accessibility and thermal characteristics.
Diagnostic Methodology
Retrieve all codes and freeze frame data from the updated engine management system. Access the rear bank for cylinder 4 inspection—engine bay layout may differ from previous Pathfinder generations. Test ignition coil output and spark plug condition. Verify fuel injector operation. Check for any technical service bulletins addressing new model concerns.
Repair Solutions
Install Nissan-approved spark plugs for the updated 3.5L platform. Replace ignition coils showing inadequate output. Address fuel system issues as identified. New vehicle warranty may cover defects—consult dealer for first-year production concerns.