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DTC P1443 indicates a mechanical fault in the Evaporative Emission (EVAP) Purge Flow System. Nine times out of ten this code is due to a loose gas cap. So that would be the first thing to check.
The other things you can look for are pinched, plugged, blocked, cracked, cut or disconnected vapor hoses between the fuel tank and carbon canister. Check for a cracked or broken carbon canister or fitting(s).
Other than that, you will need a scan tool to check the EVAP valves, sensors and electrical wiring.