Tundra 4WD V8-5.7L (3UR-FE) (2007)
Air Flow Meter/Sensor: Testing and Inspection
Component Inspection
INSPECTION
1. INSPECT MASS AIR FLOW METER
a. Check the output voltage.
1. Apply battery voltage across terminals 1 (+B) and 2 (E2G).
NOTE: While using the battery during inspection, do not bring the positive and negative tester probes too close to each other as a short
circuit may occur.
2. Using a voltmeter, connect the positive (+) tester probe to terminal 3 (VG), and negative (-) tester probe to terminal 2 (E2G).
3. Blow air into the MAF meter, and check that the voltage fluctuates.
If the result is not as specified, replace the MAF meter.
b. Perform a visual check for any foreign matter on the platinum hot wire (heater) of the mass air flow meter shown in the illustration.
OK: There is no foreign material.
If the result is not as specified, replace the mass air flow meter.