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2014 VOLVO S80
3.0L turbocharged inline-6 (T6, 281-300 hp)•AWD•AUTOMATIC•gas
1 active safety recall on this vehicle — view recalls
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Repairs0Labor505Torque3468Fluid10DTC1065Battery1Maintenance0Recalls1
P0088high severityPowertrain

Fuel Rail/System Pressure - Too High

on 2014 Volvo S80 3.0L turbocharged inline-6 (T6, 281-300 hp) · AWD

What this code means

The fuel rail pressure is higher than the PCM commanded value.

Symptoms

  • Check Engine Light
  • Hard starting
  • Rich running
  • Injector damage risk
  • Black exhaust smoke

Common causes

  • Faulty fuel pressure regulator
  • Restricted fuel return line
  • Stuck fuel pressure relief valve

Diagnostic steps

  1. Monitor fuel pressure with scan tool
  2. Test fuel pressure regulator
  3. Check return line for restriction
  4. Inspect relief valve

Repair notes

Replace fuel pressure regulator or clear fuel return restriction.

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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