When your 2024 Hyundai Santa Fe displays the P0304 code, the engine control module has detected recurring misfires in cylinder 4. The completely redesigned 2024 Santa Fe introduces new powertrain options on a fresh platform, requiring updated diagnostic understanding for effective repair.
Understanding P0304 in the 2024 Santa Fe
The redesigned 2024 Santa Fe features the 2.5L Smartstream turbocharged four-cylinder as standard, representing a departure from previous naturally aspirated base engines. Hybrid and plug-in hybrid variants continue with electrified powertrains. All four-cylinder engines position cylinder 4 at the rear of the inline configuration.
New Platform Considerations
First-year production of redesigned vehicles can reveal unexpected issues as miles accumulate. The 2.5L turbo across all trims means every gas-powered Santa Fe faces boosted ignition demands. Direct injection continues as standard, with associated carbon accumulation potential. Monitor for technical service bulletins addressing new model concerns.
Diagnostic Methodology
Identify whether you have the standard 2.5T or hybrid powertrain. Use a scanner current with 2024 Santa Fe calibrations. Retrieve all codes and freeze frame data. Navigate the redesigned engine bay for cylinder 4 access. Test ignition coil output and spark plug condition. Verify fuel injector operation.
Repair Implementation
Install Hyundai-specified spark plugs for the turbocharged application. Replace ignition coils showing degraded output. Address fuel system concerns. New vehicle warranty coverage should apply to manufacturing defects.