2007 Genesis P0174: What It Means & Is It Safe to Drive?
P0174 on the 2007 Genesis: 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.
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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 2007 Genesis
- 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 2007 Genesis, repairs for P0174 typically fall between $100 and $600, depending on the root cause and labor rates in your area.
Known issues on Genesis
Genesis 3.3T Lambda twin-turbo P0174 with P0171 is typically a MAF sensor fault or a vacuum leak at the intake manifold. On G80 3.3T, inspect the charge air cooler piping for small boost leaks—these can cause symmetric lean conditions at all RPMs.
Most commonly affected models
G80 3.3T 2017–2023GV80 2.5T/3.5T 2021–2024G70 3.3T 2019–2023