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Home >> Toyota >> 2010 >> RAV4 Base, 2.5 F, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (2AR-FE) (Service Information) >> Mass Air Flow Meter >> On-Vehicle Inspection >> On-Vehicle Inspection
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On-Vehicle Inspection

NOTE:
  • Perform the MAF meter inspection according to the procedures below.
  • Only replace the MAF meter when the MAF value in the Data List (with the engine stopped) is not within the normal operating range or there is foreign matter on the MAF meter platinum hot wire (heater).
  1. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON (do not run the engine).
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / MAF.
    5. Wait 30 seconds, and read the values on the Techstream.

      Standard

      Item Condition Specified Condition
      MAF
      • Engine not running
      • 30 seconds after turning ignition switch to ON
      		 Less than 0.45 g/sec.

      If the result is not as specified, replace the mass air flow meter sub-assembly.

      If the result is as specified, inspect the mass air flow meter sub-assembly. Refer to INSPECTION .

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