2024 Chevrolet P0174: What It Means & Is It Safe to Drive?
P0174 on the 2024 Chevrolet: System Too Lean (Bank 2). Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
PowertrainMedium urgency
What this code means
Same as P0171 but for bank 2. The engine is running too lean on the side that contains cylinder 2.
Common causes on the 2024 Chevrolet
- Vacuum leaks affecting bank 2
- Faulty MAF or O2 sensor
- Fuel delivery issues
Symptoms
- Check Engine Light
- Rough idle, hesitation
- May appear with P0171 on V6/V8 engines
Typical fixes
- Smoke test for vacuum leaks
- Inspect intake gaskets and hoses
- Check fuel pressure and filter
Repair cost range
For a 2024 Chevrolet, repairs for P0174 typically fall between $100 and $600, depending on the root cause and labor rates in your area.
Known issues on Chevrolet
P0174 on GM V6/V8 engines paired with P0171 usually indicates a cross-bank vacuum leak or a MAF sensor error affecting all cylinders. On older V6 models, spider injector failures can cause symmetric lean conditions.
Most commonly affected models
Silverado V8 2007–2013Tahoe 2007–2013Impala V6 2006–2013