P1443 = Very Small or no purge flow condition.
It can mean any of the components and not the cannister alone. The file is too large to be printed here so I have emailed a pdf format file to you.
Let me know if it is helpful.
This trouble code is not likely to be related to the trans going into limp mode and there could be other problems. Some scan tools would not show transmisison trouble codes unless it is compatible so I would suggest getting a different scanner with capabilities to test transmission system to test.
Some trouble codes would be lost once the ignition switch is turned off. When the problem occurs, get a scan done without turning the ignition off and see if any codes are present.
The freeze frame data would be the best way of analysing the problem but it can only be retrived when a code is triggerred.
Saturday, August 7th, 2010 AT 11:52 PM