What Does P0171 Mean on Your 2024 Volvo S60?
A P0171 code on your 2024 Volvo S60 means the engine control module detected a lean air-fuel ratio. The 2024 S60 uses Volvo's 2.0-liter four-cylinder: the B5 (turbo, 247 hp) or T8 Recharge (turbo+supercharged hybrid, 455 hp combined). As an inline engine with one bank, P0171 applies to the entire engine. The ECM is compensating with extra fuel.
Symptoms You Might Notice
- Check engine light on
- Rough idle
- Reduced throttle response
- Fuel economy below the expected 26-33 MPG
- Diminished boost feel
- Engine vibration at low RPMs
Common Causes of P0171 on the 2024 Volvo S60
Under warranty, most repairs should be free:
- Boost or Intake Leak (30% likelihood) — Factory issues with turbo charge piping or intercooler connections.
- ECM Software Calibration (30% likelihood) — Volvo may have released fuel management updates.
- PCV System Issue (20% likelihood) — Even on newer Volvos, PCV problems can cause vacuum leaks.
- MAF or Fuel Component (20% likelihood) — A defective sensor or fuel delivery issue.
How to Diagnose the Problem
- Visit your Volvo dealer — Under warranty, the dealer should handle this at no cost.
- Request TSB check — Ask about Technical Service Bulletins for the 2.0L platform.
- Independent diagnosis — Check fuel trims with an OBD-II scanner.
- PCV inspection — Important on all Volvo engines.
- Smoke test — Professional leak detection.
Repair Options and Cost Breakdown
- Boost or intake leak repair: $130–$380. Warranty-covered.
- ECM software update: $0–$200. Free under warranty.
- PCV system repair: $180–$500. Warranty-covered if defective.
- MAF or fuel system repair: $350–$1,000. Covered under warranty.
Prevention Tips
- Use premium 91+ octane fuel
- Attend all Volvo service appointments
- Use Volvo-approved oil specifications
- Report performance changes to the dealer while under warranty
- Avoid intake modifications on a warrantied vehicle
Warranty Coverage
The 2024 Volvo S60 comes with a 4-year/50,000-mile bumper-to-bumper warranty. All engine and fuel system components are covered. Visit your Volvo dealer for complimentary diagnosis and repair.