P1400low severityPowertrain
Fuel Tank Pressure Control Solenoid Low
on 1997 Subaru Impreza 2.2L 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
- Test solenoid resistance
- Check wiring for shorts to ground
- Inspect connector for corrosion
- Command solenoid with scan tool
- Smoke test EVAP system
Repair notes
Replace the fuel tank pressure control solenoid if it fails electrical testing.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1