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1996 SUBARU OUTBACK

2.5L H4•AWD•CVT•gas
2 active safety recalls on this vehicle — view recalls
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Repairs0Labor552Torque3616Fluid9DTC633Battery1Maintenance0Recalls2
P1400low severityPowertrain

Fuel Tank Pressure Control Solenoid Low

on 1996 Subaru Outback 2.5L H4 · AWD

What this code means

The PCM has detected a low-signal condition in the fuel tank pressure control solenoid circuit. This solenoid is part of the EVAP system and controls fuel tank pressure during emissions testing.

Symptoms

  • Check Engine Light
  • EVAP system monitor incomplete
  • Failed emissions test
  • Possible fuel odor

Common causes

  • Faulty fuel tank pressure control solenoid
  • Wiring short to ground
  • Corroded solenoid connector
  • EVAP system blockage
  • PCM driver issue

Diagnostic steps

  1. Test solenoid resistance
  2. Check wiring for shorts to ground
  3. Inspect connector for corrosion
  4. Command solenoid with scan tool
  5. Smoke test EVAP system

Repair notes

Replace the fuel tank pressure control solenoid if it fails electrical testing.

Other Powertrain codes on this vehicle

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