4 Runner 2WD V6-4.0L (1GR-FE) (2006)
Air Flow Meter/Sensor: Testing and Inspection
INSPECT MASS AIR FLOW METER
a. Output voltage inspection.
1. Apply battery voltage across terminals 1 (+B) and 2 (E2G).
2. Connect the positive (+) tester prove to terminal 3 (VG), and negative (-) tester prove to terminal 2 (E2G).
3. Blow air into the MAF meter, and check if the voltage fluctuates.
b. Resistance inspection.
1. Using an ohmmeter, measure resistance between the terminals 4 (THA) and 5 (E2).
Resistance:
13.6 - 18.4 kOhms at 20 degrees C (-4 degrees F)
2.21 - 2.69 kOhms at 20 degrees C (68 degrees F)
0.49 - 0.67 kOhms at 60 degrees C (140 degrees F)