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Home >> Lexus >> 2008 >> GX 470 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> SFI System >> DTC P0101 Mass Air Flow Circuit Range/Performance Problem >> Confirmation Driving Pattern
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Confirmation Driving Pattern

HINT:

Performing this confirmation pattern will activate the mass air flow performance monitor.

Fig 1: Mass Air Flow Performance Monitor Driving Pattern
G04828065Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch ON.
  3. Turn the tester ON.
  4. Clear DTCs (See DTC CHECK/CLEAR  ).
  5. Start the engine, and warm it up until the engine coolant temperature reaches 70°C (158°F) or higher.
  6. Drive the vehicle at approximately 62 mph (100 km/h) for 20 seconds or more.
  7. On the tester, select the following menu items: Powertrain/Engine and ECT/Trouble Codes/Pending; and check if any DTCs (any pending DTCs) are set.