With GST

1. Install all removed parts.
2. Check mass air flow sensor signal in MODE 1 with GST.
   1. 2.0 - 6.0 g.m/sec: at idling 
   2. 7.0 - 20.0 g.m/sec: at 2,500 RPM 

OK or NG 

1. OK: GO TO 7.
2. NG: Check connectors for rusted terminals or loose connections in the mass air flow sensor circuit or engine grounds. Refer to "DTC P0101 MAF SENSOR ".