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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 172 (Engine Control System - SFI System Diagnostics (1 Of 4)) >> DTC P0101 Mass Air Flow Circuit Range / Performance Problem >> Confirmation Driving Pattern

Confirmation Driving Pattern

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

HINT.

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

Fig 1: Vehicle Speed - Driving Pattern
G05751463Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Connect the Techstream to the DLC3
  2. Turn the engine switch on (IG)
  3. Turn the Techstream 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. Enter the following menus. Powertrain / Engine / Trouble Codes, then check if any DTCs (any pending DTCs) are set.
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