What Does P0174 Mean on Your 2022 Chevrolet Traverse?
A P0174 diagnostic trouble code on your 2022 Chevrolet Traverse means the ECM detected a lean air-fuel mixture on Bank 2. Too much air or too little fuel is reaching the cylinders on that bank. The 2022 Traverse uses a 3.6-liter V6 producing 310 horsepower. With two cylinder banks, P0174 targets Bank 2 specifically.
A lean condition causes higher exhaust temperatures and can lead to catalytic converter damage, misfires, and poor performance. Address this within a couple of weeks to avoid costly secondary damage.
Common Symptoms You May Notice
- Check engine light illuminated
- Rough idle
- Hesitation when accelerating
- Decreased fuel economy
- Engine vibration
- Occasional misfires
Most Likely Causes of P0174 on the 2022 Traverse
- Vacuum Leak - Cracked vacuum hoses or a leaking intake manifold gasket on Bank 2 are the most frequent cause of lean codes on the 3.6L V6.
- Dirty MAF Sensor - Contamination causes underreporting of airflow, resulting in lean fuel delivery.
- Failing O2 Sensor - A degrading Bank 2 upstream oxygen sensor can mislead the ECM into leaning out the mixture.
- Fuel Delivery Issue - Weak fuel pump or restricted fuel supply can create a lean condition.
How to Diagnose the Problem
- Scan codes - Confirm P0174 and check for companion codes.
- Check fuel trims - High positive LTFT on Bank 2 confirms the lean condition.
- Inspect vacuum system - Check Bank 2 hoses and intake gaskets.
- Clean MAF sensor - Use MAF-specific cleaner spray.
- Test fuel pressure - Verify approximately 50 to 58 psi at idle.
Repair Options and Cost Breakdown
The 2022 Traverse may still be under GM's factory warranty.
- Warranty repair - $0 if covered.
- Vacuum hose repair - $10 to $40.
- MAF sensor cleaning - $8 to $15.
- MAF sensor replacement - $100 to $220, plus $50 to $100 labor.
- O2 sensor replacement - $100 to $260, plus $80 to $160 labor.
- Fuel pump replacement - $300 to $500, plus $200 to $400 labor.
Can You Fix This Yourself?
Cleaning the MAF sensor and checking vacuum hoses are simple DIY tasks. If the vehicle is under warranty, take it to the dealer first. The Traverse engine bay offers reasonable access for most repairs when the warranty has expired.
Prevention Tips
- Replace the air filter at recommended intervals
- Use quality gasoline from top-tier stations
- Inspect vacuum hoses during routine maintenance
- Follow the GM maintenance schedule
- Address check engine lights promptly