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2002 VOLVO S80
2.9L I6•AWD•AUTOMATIC•gas•B6294S
5 active safety recalls on this vehicle — view recalls
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Repairs0Labor1005Torque6617Fluid14DTC1718Battery2Maintenance0Recalls5
P0402moderate severityPowertrain

EGR Flow Excessive Detected

on 2002 Volvo S80 2.9L I6 · AWD

What this code means

The EGR system is flowing too much exhaust gas.

Symptoms

  • Check Engine Light
  • Rough idle
  • Stalling
  • Surging
  • Poor acceleration

Common causes

  • EGR valve stuck open
  • Faulty EGR solenoid
  • Vacuum leak to EGR valve
  • Faulty DPFE sensor reading low

Diagnostic steps

  1. Check EGR valve for stuck-open condition
  2. Test EGR solenoid
  3. Check vacuum lines
  4. Test DPFE/position sensor

Repair notes

Replace EGR valve if stuck open. Repair vacuum lines.

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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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