lemon-mirror:
Home >> Lexus >> 1993 >> SC 400 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Self-Diagnostic System >> Diagnostic Trouble Codes >> Code 31

Code 31

Condition is: no airflow meter signal to ECM for 5 seconds with engine speed more than 300 RPM. Probable cause: open or short in airflow meter circuit, defective airflow meter or defective ECM.