Mass Air Flow Meter: Inspection

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INSPECT MASS AIR FLOW METER

Perform a visual check for any foreign matter on the platinum hot wire (heater) of the mass airflow meter shown in the illustration.
OK:

No foreign matter attached.

If the result is not as specified, replace the mass air flow meter.

Fig 1: Inspecting Mass Air Flow Meter
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value(s) in the table below.

Standard Resistance

RESISTANCE REFERENCE

Taster Connection	Condition	Specified Condition
1 (THA) - 2 (E2)	-20°C (-4°F)	13.6 to 18.4 kΩ
1 (THA) - 2 (E2)	20°C (68°F)	2.21 to 2.69 kΩ
1 (THA) - 2 (E2)	60°C (140°F)	0.493 to 0.667 kΩ

If the result is not as specified, replace the mass air flow meter.

Fig 2: Identifying Mass Air Flow Meter Connector

G05136390

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002