Checking Mass Air Flow When Idling

Checking Mass Air Flow When Idling

















Unplug the connector:
^ EVAP canister purge valve (321)
^ Connect a test lamp to the female connector.
^ Start the engine and run It at idling speed.
^ Turn off the A/C.
^ Read value: Airmass Deviation from Calculated (Trionic).
^ State what the diagnostic tool shows:

-15% to -15%

Other Value