MASS AIR FLOW METER > INSPECTION

for Preparation Click here

1. Perform a visual check for any foreign matter on the platinum hot wire (heater) of the mass air flow meter shown in the illustration.
   

   Text in Illustration 

   *a	Platinum Hot Wire (Heater)

   OK:

   There is no foreign matter.
   

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

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

   Text in Illustration 

   *a	Component without harness connected (Mass Air Flow Meter)

   Standard Resistance:

   Tester 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)	0.49 to 0.67 kΩ

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