AMC OBD Trouble Code 31

Purge Solenoid open or shorted

Wastegate solenoid - Circuit fault

Low airflow meter voltage (for ES300 and GS300 models)

EVAP Solenoid Circuit
Short or open in the EVAP solenoid circuit. Check for loose, broken, or shorted wire in the charcoal canister purge solenoid wiring and connectors.

EGR position sensor below minimum voltage