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Mass Air Flow Meter: Inspection

INSPECT MASS AIR FLOW METER

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: No foreign matter is attached .

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

Fig 1: Identifying Platinum Hot Wire (Heater)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Standard Resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

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

Fig 2: Identifying Mass Air Flow Meter

G06040797

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002