Mass Air Flow Meter: Inspection
- INSPECT MASS AIR FLOW METER
- Output voltage inspection.
- Apply battery voltage across terminals 1 (+B) and 2 (E2G).
- Connect the position (+) tester probe to terminal 3 (VG), and negative (-) tester probe to terminal 2 (E2G).
- Blow air into the MAF meter, and check that the voltage fluctuates.
- Resistance inspection.
- Using an ohmmeter, measure the resistance between terminals 4 (THA) and 5 (E2).
Resistance
TERMINALS RESISTANCE
| Symbols (Terminal No.) |
Resistance |
Temperature |
| THA (4) - E2 (5) |
13.6 to 18.4 kΩ |
-20° (-4°F) |
| THA (4) - E2 (5) |
2.21 to 2.69 kΩ |
20° (68°F) |
| THA (4) - E2 (5) |
0.49 to 0.67 kΩ |
60° (140°F) |
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