What Does P0174 Mean on Your 2022 Chevrolet Colorado?
A P0174 code on your 2022 Chevrolet Colorado means the ECM detected a lean air-fuel mixture on Bank 2. The 2022 Colorado offers the same engine lineup as previous years: a 2.5-liter four-cylinder (200 hp), a 3.6-liter V6 (308 hp), or a 2.8-liter Duramax diesel (181 hp). P0174 is most relevant to the V6, which has two distinct cylinder banks.
The 2022 Colorado may still be under GM's factory warranty, so check your coverage before paying for repairs out of pocket.
Common Symptoms You May Notice
- Check engine light illuminated
- Rough idle
- Power loss during acceleration
- Poor fuel economy
- Engine stumble or hesitation
- Misfires under load
Most Likely Causes of P0174 on the 2022 Colorado
- Vacuum Leak - Intake manifold gasket issues or cracked vacuum hoses on the Bank 2 side.
- MAF Sensor Contamination - Dirty MAF sensor from dust, debris, or oil vapor exposure.
- O2 Sensor Degradation - Bank 2 upstream O2 sensor providing inaccurate readings.
- Fuel System Issue - Weak fuel pump or restricted fuel delivery.
How to Diagnose the Problem
- Scan codes - Confirm P0174 and check for companion codes.
- Monitor fuel trims - High positive LTFT on Bank 2 confirms the issue.
- Check vacuum hoses - Inspect all Bank 2 connections and gaskets.
- Clean MAF sensor - Quick and affordable first step.
- Test fuel pressure - Verify pressure meets specifications.
Repair Options and Cost Breakdown
- 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 $250, plus $80 to $160 labor.
- Fuel pump replacement - $280 to $480, plus $200 to $350 labor.
Can You Fix This Yourself?
The Colorado is very DIY-friendly. Basic diagnostic checks and MAF cleaning take minutes. Sensor replacement requires basic tools. If under warranty, let the dealer handle it. Once out of warranty, the Colorado community offers excellent repair guides and support.
Prevention Tips
- Replace air filter frequently in dusty conditions
- Use quality fuel from reputable stations
- Inspect vacuum connections during routine maintenance
- Follow the GM maintenance schedule
- Clean MAF sensor periodically