2020 Land Rover P0174: What It Means & Is It Safe to Drive?
P0174 on the 2020 Land Rover: 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 2020 Land Rover
- 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 2020 Land Rover, repairs for P0174 typically fall between $100 and $600, depending on the root cause and labor rates in your area.
Known issues on Land Rover
Land Rover 3.0L supercharged V6 P0174 alongside P0171 typically indicates a cracked charge air cooler hose or a boost leak post-intercooler—unmetered air bypasses the MAF and causes symmetric lean conditions. Smoke test the boost system before replacing the MAF sensor.
Most commonly affected models
Range Rover 3.0L V6 2013–2020Discovery Sport 2.0T 2015–2022Range Rover Sport 3.0L 2014–2020