What does the following codes tell and what is the solution? Really appreciate your feedbacks.
1. Trouble code - P0335
Description - use CPS circuit Fault
State - Continuos Memory Dtc
2. Trouble code - P0172
Description - system too rich (bank 1)
State - Continuos memory Dtc
3. Trouble code- U0073
Description - Control module communication Bus off
State - Continuos memory Etc.

 

DTC P0335

DTC P0172

U0073 you can ignore. It just means that your code reader isn't entirely compatible with the Mazda ECU, it's normal to see with non-Mazda code readers.