Component Function Check

With GST 

1. Start engine and warm it up to normal operating temperature.
2. Select Service $01 with GST.
3. Check the mass air flow sensor signal with Service $01.
4. Check for linear mass air flow sensor signal value rise in response to increases to about 4,000 rpm in engine speed.

   Is the inspection result normal? 

   YES: INSPECTION END

   NO: Go to "DIAGNOSIS PROCEDURE ".

   Fig 1: Generic Scan Tool Display - MAF