We are assumin gthat you are talking about DTC P1443 - Evaporative Emission Control System - Vacuum System - Purge
Control Solenoid or Purge Control Valve fault.
Best guess without pinpoint testing would be the purge flow sensor. This is the most common failure for this code but can be caused by anything that would limit flow across the sensor when flow is commanded by the PCM restricted cannister,stuck or plugged cannister vent solenoid,etc....
On the base model it is located in the purge line between the carbon cannister and the purge solenoid. See pic below for base model diagram(click HERE for zoom)...
Click HERE for zoom...
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Hope thie helps.
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