What P0174 Means on Your 2023 Dodge Charger
A P0174 code on your 2023 Dodge Charger indicates Bank 2 is running lean. The 2023 Charger was the final model year of the iconic ICE-powered Charger, offering the 3.6L Pentastar V6 (292 hp), 5.7L HEMI V8 (370 hp), 6.4L HEMI V8 (485 hp), and the supercharged 6.2L (up to 807 hp in the Jailbreak). Bank 2 is the passenger side on all V-configured engines.
As the last of the HEMI Chargers, keeping your engine in top shape is especially important for maintaining value and performance.
Symptoms
- Check engine light on
- Rough idle
- Reduced power
- Poor fuel economy
- Hesitation under throttle
- Possible engine knock
Common Causes
- Vacuum Leak (30% likelihood) – Intake manifold gaskets and vacuum hose connections.
- Exhaust Manifold Leak (25% likelihood) – HEMI exhaust manifold bolt failure, especially on the passenger side.
- MAF Sensor Issue (25% likelihood) – Contamination or failure, common with aftermarket air intakes.
- Fuel System Problem (20% likelihood) – Injector or fuel pump issues.
Diagnosis
- Check warranty – The 2023 Charger may still be under Stellantis's bumper-to-bumper warranty.
- Compare bank fuel trims – Isolate Bank 2.
- Exhaust inspection – Listen for ticking on cold start.
- Smoke test – Find intake leaks.
- Component testing – MAF, injectors, fuel pressure.
Repair Costs
- Vacuum leak – $80–$500.
- Exhaust manifold – $200–$900.
- MAF sensor – $80–$250.
- Fuel system – $150–$500.
DIY or Professional?
The Charger community provides excellent DIY support. MAF cleaning is beginner-level. Exhaust manifold bolt repair on HEMIs requires patience and proper tools. If under warranty, let the dealer handle it first.
Prevention
- Use premium fuel on V8 models
- Keep OEM air filtration
- Inspect exhaust manifold bolts regularly
- Follow maintenance schedule
- Preserve this last-generation Charger with proper care