GM Repair Problems? Ask GM Repair Expert Now.
Welcome! I'm Ron Z! I will do my best to answer all of your questions. For easy access to this thread, bookmark it now! Please read everything!
The P0443 is a fairly straight forward code pointing to a fault in the EVAP Purge Solenoid. Carefully inspect the vacuum lines for any cracks, holes or loose/missing connections. Inspect the electrical connector for any loose, broken or rubbed through wires. If the visual inspection checks ok, suspect a faulty solenoid.