What P0174 Means on Your 2022 Dodge Charger
When your 2022 Dodge Charger sets a P0174 code, the PCM has detected a lean condition on Bank 2. The 2022 Charger offers the 3.6L Pentastar V6 (292 hp), 5.7L HEMI V8 (370 hp), 6.4L HEMI V8 (485 hp), and the supercharged 6.2L Hellcat (717 hp). On these V-configuration engines, Bank 2 is the passenger side.
Whether your Charger is a daily driver V6 or a track-ready Scat Pack, lean running compromises performance and engine health.
Symptoms
- Check engine light on
- Rough idle
- Reduced power and throttle response
- Poor fuel economy
- Hesitation during acceleration
- Engine knock under load (especially V8s)
Common Causes
- Vacuum Leak (30% likelihood) – Intake manifold gaskets and vacuum hoses age and develop leaks. The HEMI's large intake manifold is a common area.
- Exhaust Manifold Leak (25% likelihood) – HEMI exhaust manifold bolt failures cause exhaust leaks that affect O2 sensor readings on Bank 2.
- MAF Sensor Contamination (25% likelihood) – Aftermarket cold air intakes are popular on Chargers and can contaminate the MAF sensor with oil.
- Fuel System Issue (20% likelihood) – Clogged injectors or weak fuel pump, especially with MDS-equipped V8 engines.
Diagnosis
- Compare bank fuel trims – Determine if the issue is Bank 2-specific.
- Listen for exhaust ticking – Especially on cold starts (HEMI).
- Smoke test – Find intake vacuum leaks.
- Test MAF and injectors – Verify proper operation.
- Check fuel pressure – Ensure adequate delivery.
Repair Costs
- Vacuum leak – $80–$500.
- Exhaust manifold – $200–$900.
- MAF sensor – $80–$250.
- Fuel injector – $150–$500.
DIY Options
Charger owners have a strong DIY community. MAF cleaning is simple. Exhaust manifold bolt repair is doable but patience-testing on HEMIs. Intake work varies by engine. The V6 is easier to access than the V8. Plenty of YouTube and forum guides exist for all common fixes.
Prevention
- Use quality fuel (premium for V8 models)
- Keep OEM-style air filters to protect the MAF
- Inspect exhaust manifold bolts at oil changes
- Follow Stellantis maintenance schedule
- Consider fuel system cleaning at 50,000 miles