What Does P0171 Mean on Your 2024 Volvo XC60?
A P0171 code on your 2024 Volvo XC60 means the engine control module detected a lean air-fuel ratio. The 2024 XC60 uses Volvo's 2.0-liter four-cylinder: the B5 (turbo, 247 hp), B6 (turbo+supercharged, 295 hp), or T8 Recharge hybrid. As an inline engine with one bank, P0171 means the entire engine is running lean.
Symptoms You Might Notice
- Check engine light on
- Rough idle
- Sluggish acceleration
- Fuel economy below expected 23-29 MPG
- Reduced power under boost
- Engine vibration at low speeds
Common Causes of P0171 on the 2024 Volvo XC60
Under warranty, most causes should be repaired free:
- Boost or Intake Leak (30% likelihood) — Factory assembly issues with charge pipes, intercooler connections, or intake gaskets.
- ECM Software Issue (30% likelihood) — Volvo may have released fuel management calibration updates.
- PCV System Problem (20% likelihood) — Even on newer Volvos, PCV issues can cause vacuum leaks.
- MAF or Fuel System Component (20% likelihood) — A defective MAF sensor, weak fuel pump, or injector issue.
How to Diagnose the Problem
- Visit your Volvo dealer — Under the 4-year/50,000-mile warranty, let the dealer handle it for free.
- Request TSB check — Ask about Technical Service Bulletins for the 2.0L engine and fuel trim codes.
- Independent diagnosis — Check fuel trims with an OBD-II scanner.
- PCV inspection — Always worth checking on Volvo engines.
- Smoke test — Professional leak detection for the intake system.
Repair Options and Cost Breakdown
- Boost or intake leak repair: $150–$400. Warranty-covered.
- ECM software update: $0–$200. Free under warranty.
- PCV system repair: $200–$550. Should be warranty-covered if defective.
- MAF or fuel system repair: $400–$1,100. Covered under warranty.
Prevention Tips
- Use premium 91+ octane fuel
- Attend all scheduled Volvo service appointments
- Use Volvo-approved oil specifications
- Report performance changes to the dealer promptly
- Don't modify intake or exhaust on a warrantied vehicle
Warranty Coverage
The 2024 Volvo XC60 comes with a 4-year/50,000-mile bumper-to-bumper warranty. All engine, PCV, and fuel system components are covered at no cost to you.