p0171
Moderate
Volvo · SUVs
System Too Lean (Bank 1)
Quick Answer
Error code P0171 on your Volvo SUVs means: System Too Lean (Bank 1). This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Scan vehicle with OBD-II scanner
2
Inspect fuel pressure and oxygen sensors
3
Check for vacuum leaks
4
Clean or replace fuel injectors
5
Replace fuel pump if necessary
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
oxygen sensor
fuel filter
fuel pump
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