Subaru P1400: Fuel Tank Pressure Control Solenoid Valve Circuit Low

Is your scanner showing Subaru P1400?
No worries. We'll show you what it means and how to deal with it.

Presented by

Randy Worner

00:00/00:00

Subaru P1400: Fuel Tank Pressure Control Solenoid Valve Circuit Low

OVERVIEW

Severity

Medium

DIY Difficulty Level

Intermediate

Repair Cost

$200-$300

Can I Still Drive?

Yes (Short-term only)

What Does The Subaru P1400 Code Mean?

Battery voltage ≥ 10.9 V. Elapsed time after starting the engine ≥ 1 second. Low fuel tank pressure solenoid terminal output voltage when ECM outputs OFF signal.

What Are The Potential Causes Of The Subaru P1400 Code?

Wiring haness between pressure control solenoid valve and chassis ground needs repair.
Wiring harness between ECM and pressure control solenoid needs repair.
Poor contact of coupling connector.
Defective pressure control solenoid valve.