P0175 on the 2024 Dodge Durango: Breaking It Down
The 2024 Dodge Durango carries forward the proven 3.6L Pentastar V6 and the available 5.7L HEMI V8 with eTorque mild-hybrid assist. When the P0175 code appears, your Durango's PCM has detected that the air-fuel mixture on bank 2 is running too rich — more fuel than the stoichiometric ratio of 14.7:1 calls for. On a relatively new 2024 model, this code deserves attention because it shouldn't be happening on a vehicle with so few miles.
Recognizable Symptoms
- Check engine light on
- Decreased fuel economy — noticeable even with the eTorque system's efficiency benefits
- Dark exhaust smoke under load
- Rough or uneven idle
- Exhaust smells strongly of fuel
- Slight hesitation during acceleration
What Causes P0175 on a Nearly New 2024 Durango?
1. MAF Sensor Contamination
Even on a new vehicle, the mass airflow sensor can become contaminated — especially if the owner has installed an aftermarket air intake or if the vehicle operates in dusty conditions frequently. The Durango's intake is positioned to draw air from the fender area, making it susceptible to road debris. A dirty MAF underreports airflow, triggering over-fueling. Cleaning the sensor is essentially free with a $10 can of MAF cleaner; full replacement costs $100–$220.
2. Manufacturing Defect in Fuel Injectors
On a 2024 model with low miles, a P0175 code pointing to injector issues likely indicates a manufacturing defect — an injector that isn't seating properly or has an incorrect flow rate. This should absolutely be addressed under warranty. Stellantis has issued technical service bulletins (TSBs) for injector-related issues on the Pentastar engine. Out-of-warranty cost would be $150–$500 for injector replacement.
3. O2 Sensor Defect
A brand-new O2 sensor can still fail. On the 2024 Durango, a defective upstream oxygen sensor on bank 2 will send incorrect voltage signals, causing the PCM to over-correct with additional fuel. This is a warranty repair. Out of warranty, expect $150–$300 for parts and labor.
4. Software/Calibration Issue
The 2024 Durango's PCM relies on fuel maps and calibration tables. If there's a software bug or calibration error from the factory, it can cause incorrect fuel delivery. Your dealer can check for any pending PCM flash updates (TSBs). This repair is free under warranty — the dealer simply reprograms the PCM.
Diagnostic Steps
- Check for TSBs — the 2024 is new enough that manufacturer-issued fixes may already exist
- Scan for all codes and review freeze frame data
- Monitor live fuel trim data — LTFT bank 2 below -8% on a new vehicle is abnormal
- Inspect the MAF sensor and air filter for contamination
- Have the dealer verify PCM software version is current
- If dealer-installed aftermarket accessories exist, check for intake modifications
Should You Worry?
On a 2024 model, P0175 likely points to a defect or contamination rather than wear. The good news is your Durango should be well within warranty coverage. Take it to your Dodge dealer and let them diagnose it — this should be a no-cost repair. Don't attempt DIY repairs that could void warranty coverage on a vehicle this new.
Warranty Coverage Details
The 2024 Durango includes a 3-year/36,000-mile basic warranty and 5-year/60,000-mile powertrain warranty. The federal emissions warranty covers key components for 8 years/80,000 miles. All sensors and components related to P0175 should be covered. Document the code occurrence and take it to the dealer promptly.