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2008 SUBARU LEGACY
3.0L H6•AWD•AUTOMATIC•gas
9 active safety recalls on this vehicle — view recalls
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Repairs0Labor504Torque1467Fluid9DTC1826Battery1Maintenance0Recalls9
P1244high severityPowertrain

Wastegate Control Solenoid Valve Low Input

on 2008 Subaru Legacy 3.0L H6 · AWD

What this code means

The PCM has detected a low-input signal from the wastegate control solenoid valve circuit. This solenoid regulates boost pressure on turbocharged Subaru engines by controlling the wastegate.

Symptoms

  • Check Engine Light
  • Overboosting condition
  • Boost fluctuation
  • Loss of power under boost
  • Turbo system warning

Common causes

  • Faulty wastegate control solenoid
  • Wiring short to ground in solenoid circuit
  • Corroded solenoid connector
  • Boost control system vacuum leak
  • PCM driver circuit failure

Diagnostic steps

  1. Test wastegate solenoid resistance
  2. Check solenoid wiring for shorts to ground
  3. Inspect solenoid connector for corrosion
  4. Verify boost pressure readings on scan tool
  5. Command solenoid with scan tool and verify operation

Repair notes

Replace the wastegate control solenoid if faulty; repair wiring shorts in the solenoid circuit.

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