What P0174 Means on Your 2024 Dodge Hornet
When your 2024 Dodge Hornet sets a P0174 code, the engine control module has detected a lean condition on Bank 2. The 2024 Hornet GT features a 2.0L turbocharged four-cylinder (268 hp) while the R/T has a 1.3L turbo-four plug-in hybrid (288 combined hp). These inline-four engines have one bank, and P0174 means the lean correction has exceeded its limits.
The Hornet is under full warranty, making this a straightforward dealer visit.
Symptoms
- Check engine light on
- Rough idle
- Reduced power and boost response
- Poor fuel economy
- Acceleration hesitation
- Possible surging
Common Causes
- Boost Leak (35% likelihood) – Turbo piping connections, intercooler hoses, or factory assembly issues.
- MAF Sensor Issue (25% likelihood) – Factory defect or early contamination.
- Fuel System Problem (20% likelihood) – Injector or fuel pressure issue.
- Software Calibration (20% likelihood) – Platform updates for fuel trim optimization.
Diagnosis
- Dealer visit – Full warranty coverage.
- TSB check – Check for service bulletins.
- Component testing – Using Stellantis-specific diagnostic tools.
Repair Costs
- Covered under warranty.
- Out-of-pocket estimates: Boost leak $80–$400, MAF $100–$280, fuel system $250–$650, software $0–$200.
Let the Dealer Fix It
The 2024 Hornet is covered by Stellantis's 3-year/36,000-mile basic and 5-year/60,000-mile powertrain warranty. The dealer has proper tools for this Alfa Romeo-derived platform and can apply any available software updates.
Prevention
- Follow the maintenance schedule
- Use quality fuel
- Report issues to the dealer early
- Keep OEM components
- Stay current on service visits