What P0174 Means on Your 2022 Dodge Durango
When your 2022 Dodge Durango sets a P0174 code, the PCM has detected a lean condition on Bank 2. The 2022 Durango offers the 3.6L Pentastar V6 (293 hp), 5.7L HEMI V8 (360 hp), and 6.4L HEMI V8 (475 hp). Bank 2 is the passenger side on all V-configuration engines. The code means too much air or insufficient fuel on that bank.
As a three-row SUV used for family transport, the Durango needs to run reliably. Address this code to maintain safe, dependable performance.
Symptoms
- Check engine light on
- Rough idle
- Power loss
- Reduced fuel economy
- Hesitation under throttle
- Possible knock under load
Common Causes
- Vacuum Leak (30% likelihood) – Intake manifold gaskets and vacuum lines.
- Exhaust Manifold Leak (25% likelihood) – HEMI exhaust manifold bolt failures.
- MAF Sensor Issue (25% likelihood) – Contamination or degradation.
- Fuel System Problem (20% likelihood) – Injectors or fuel pump issues.
Diagnosis
- Compare bank fuel trims – Identify if Bank 2-specific or system-wide.
- Exhaust inspection – Listen for ticking.
- Smoke test – Find vacuum leaks.
- Component testing – MAF, injectors, fuel pressure.
Repair Costs
- Vacuum leak – $80–$500.
- Exhaust manifold – $200–$900.
- MAF sensor – $80–$250.
- Fuel system – $200–$600.
DIY Options
The Durango's SUV-sized engine bay gives adequate access. MAF cleaning and hose inspections are beginner-level. Exhaust manifold work on HEMIs requires patience with potentially seized bolts. The Mopar community has excellent guides for all common repairs.
Prevention
- Use quality fuel
- Replace air filter on schedule
- Inspect exhaust manifold bolts
- Follow maintenance schedule
- Address symptoms early