Mass Air Flow Meter: Inspection
- INSPECT MASS AIR FLOW METER SUB-ASSEMBLY
- 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.
- Check the intake air temperature sensor. (Built into the MAF meter)
- Measure the resistance according to the value (s) in the table below
Standard resistance
STANDARD RESISTANCETester Connection Condition Specified Condition 1 (THA) - 2 (E2) -20°C (-4°F) 13.6 to 18.4 kΩ 20°C (68°F) 2.21 to 2.69 kΩ 60°C (140°F) 0.49 to 0 67 kΩ Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If the result is not as specified, replace the MAF meter sub-assembly
- Measure the resistance according to the value (s) in the table below
- Perform a visual check for any foreign matter on the platinum hot wire (heater) of the mass air flow meter shown in the illustration.