Hello,
Could you help us confirm which CodeWarrior version are you using?
In recent version of Code Warrior, the mcp file is not used.
In older version of Code warrior, you could check the mcp file in the directory: Workspace>Project> "MCU-used name" folder.
Could you help us confirm which 8-bit device is your project using?
For using the latest and recommended version of Code Warrior 11.1, I use these instructions for testing changing name of a project for MC9S08QE8 [8Bits device]
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- Make a copy of your project folder for backup
- Click Right and rename the project folder


- In the New project folder, enter Properties and go to > C/C++ Build >Settings > Build Artifact > Artifact name and change to the new project name

- Click on the project folder and select clean Project and build project

- Enter Properties > Run/Debug Settings, select the Launch configuration and click edit.

- In "Launch configuration properties" window modify the Launch configuration properties name.
- Confirm that in C/C++ Application section the project name is changed.
- In C/C++ application select Search project and enter the new project binaries.


- In target settings > Connection select edit, a window will be open

- In "Hardware or Simulator Connection" window change the name to match your new project name
- In target section select edit a window will be open.

- In "Hardware or Simulator target" window change the name to match your new project name.

- Select Ok to close the windows and go back to "Launch configuration properties", apply and ok to close.
- Click on the project folder and select clean Project and build project
Please let me know if that work for you.
Best Regards, Luis