The P0304 code in your 2024 Nissan Pathfinder indicates the powertrain control module has detected persistent misfires in cylinder 4. The Pathfinder's proven 3.5L V6 engine requires proper understanding of V6 cylinder configuration for effective diagnosis and lasting repair of this combustion problem.
Understanding P0304 in the 2024 Pathfinder
The 2024 Pathfinder continues with the 3.5L V6 producing 284 horsepower through variable valve timing and direct fuel injection. This V6 configuration positions cylinder 4 on the rear bank, closest to the firewall. Nissan's advanced engine management identifies the specific misfiring cylinder through crankshaft acceleration pattern analysis.
Common Misfire Causes
The naturally aspirated V6 experiences standard ignition component wear over time. Spark plug electrode erosion affects ignition quality. Ignition coils degrade from repeated thermal cycling. Direct injection contributes to intake valve carbon accumulation. Fuel injector spray patterns can deteriorate affecting combustion efficiency.
Systematic Diagnostics
Retrieve all codes and analyze freeze frame conditions when misfires occurred. Access the rear bank for cylinder 4 component inspection. Test spark plug condition and ignition coil output. Verify fuel injector operation through appropriate testing methods. Consider carbon buildup inspection if mileage warrants.
Repair Implementation
Install Nissan-specified spark plugs for the 3.5L V6 at proper torque values. Replace ignition coils showing degraded resistance or output. Address fuel injector issues through cleaning or replacement. Professional carbon cleaning benefits vehicles exhibiting related symptoms.