Mass Air Flow Meter: Inspection: 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 as shown in the illustration.
OK
There is no foreign matter.
TEXT IN ILLUSTRATION*1 Platinum Hot Wire (Heater) - Check the intake air temperature sensor (built into the mass air flow meter).
- Measure the resistance according to the value(s) in the table below.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Standard Resistance
Tester 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 TEXT IN ILLUSTRATION*a Component without harness connected
(Mass Air Flow Meter)If the result is not as specified, replace the mass air flow 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 as shown in the illustration.