What does P1443 mean on a Ford?

P1443. EVAP Canister Purge System/Valve Fault. Applies to Mustang, F-150, Ranger, Taurus, Explorer (1990s-2000s EVAP systems).

What causes P1443 on a Ford?

Failed canister purge solenoid or valve Blocked, cracked or disconnected EVAP vacuum hoses Faulty purge flow sensor where fitted Stuck charcoal canister check valve Wiring fault in the purge control circuit

How do I fix P1443 on a Ford?

Command the purge valve with a scanner and feel for a click Inspect all EVAP hoses between the canister, valve and intake Test purge flow during a drive cycle with a scan tool Check the purge circuit wiring and connector Replace the purge valve or solenoid after confirming the command signal

Code

P1443

EVAP Canister Purge System/Valve Fault

Category: Powertrain - Auxiliary Emissions Controls
Severity: Check Engine Light
Applies to: Mustang, F-150, Ranger, Taurus, Explorer (1990s-2000s EVAP systems)
Related: P0441 Evaporative Emission System Incorrect Purge Flow on OBD Codes List

Findings, check these first

Failed canister purge solenoid or valve
Blocked, cracked or disconnected EVAP vacuum hoses
Faulty purge flow sensor where fitted
Stuck charcoal canister check valve
Wiring fault in the purge control circuit

Standard procedure

Command the purge valve with a scanner and feel for a click
Inspect all EVAP hoses between the canister, valve and intake
Test purge flow during a drive cycle with a scan tool
Check the purge circuit wiring and connector
Replace the purge valve or solenoid after confirming the command signal

Code lookup

Type a code above, or start from a symptom or a common code.

Press / to jump to the box. Ford-enhanced powertrain, body, chassis and network codes. Generic P0xxx codes live on OBD Codes List.

Sources and review

Review: checked against the recorded source material.

OBDII.pro: P1443 Ford definition
live reference page (obdii.pro)
Supports: Ford-family meaning for P1443: Evaporative Emission Control System Control Valve
Fetched directly. obdii.pro is a publisher independent of the engine-codes family.
P1443 FORD Code: Meaning, Causes, and Symptoms | OBD2 Codes
live reference page (obd2-codes.co)
Supports: Ford meaning for P1443: EVAP Control System Purge Control Solenoid or Purge Control Valve Fault
Fetched directly. obd2-codes.co phrasing matches the engine-codes family, so it counts as one publisher.

Last updated 2026-09-20.

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