The P0304 diagnostic trouble code on your 2024 Toyota Tacoma indicates the powertrain control module has detected consistent misfires in cylinder 4. The completely redesigned 4th generation Tacoma features new engines.
2024 Tacoma Powertrains
The redesigned 2024 Tacoma offers the 2.4L turbocharged four-cylinder (278 hp) or i-FORCE MAX hybrid. Cylinder 4 is the rearmost on these inline-4 configurations. The turbo system adds diagnostic complexity.
Typical Causes
- Ignition Coil Problems: Turbo stresses ignition components
- Spark Plug Condition: Turbo-specific requirements
- Boost System Integrity: Leaks cause lean misfires
- Fuel Injector Issues: Direct injection system
- Software Calibration: First-year redesign may have updates
Diagnostic Process
Use Toyota diagnostics for the new platform. Monitor boost pressure and misfire data. Check for TSBs addressing first-year issues. Test ignition components systematically.
Repair Recommendations
Replace faulty ignition coils with OEM parts. Install properly specified spark plugs. Check for ECM software updates. Dealer service ensures warranty coverage.