A P0304 diagnostic code on your 2024 Honda CR-V indicates the engine control module has detected repeated misfires in cylinder 4. The 6th generation CR-V offers turbocharged and hybrid powertrains.
2024 CR-V Engine Options
The 2024 CR-V offers the 1.5L turbocharged four-cylinder (190 hp) or 2.0L hybrid system (204 hp). On both inline-4 configurations, cylinder 4 is the rearmost cylinder.
Common Causes
- Ignition Coil Failure: Turbo models stress ignition components
- Spark Plug Issues: Turbocharged engines require specific plugs
- Boost System Leaks: 1.5L turbo sensitive to intake leaks
- Fuel Injector Problems: Direct injection deposits
- Carbon Buildup: GDI technology contributes to valve deposits
Diagnostic Approach
Use a Honda-compatible scanner for detailed diagnostics. Monitor misfire counts and boost data on turbo models. The hybrid has different operating characteristics. Test ignition components systematically.
Repair Solutions
Replace failed ignition coils with Honda OEM components. Install properly specified spark plugs. Address carbon buildup through professional cleaning. Dealer service ensures warranty coverage.