Evaporative Emission Control System Vent Control Function Problem
Table of contents
P1443 SUBARU Possible Causes
- Faulty/Clogged Drain Valve
- Drain Valve harness is open or shorted
- Drain Valve circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How do I fix code P1443 SUBARU?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
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Cost of diagnosing the P1443 SUBARU code
The cost of diagnosing the P1443 SUBARU code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1443 SUBARU Description
This is a normally open solenoid used to allow fresh air to enter the charcoal canister when purging vapors into the engine. The evaporative vent solenoid (drain valve) can also be closed to allow the evaporative system to run the leak monitor. The Diagnostic Trouble Code (DTC) will set when the Engine Control Module (ECM) detects the drain valve is inoperative/stuck in the closed position.