Toyota Avalon Service & Repair Manual: Inspection

Toyota Avalon Service & Repair Manual / Engine / A25a-fxs Engine Control / Mass Air Flow Meter / Inspection

INSPECTION

PROCEDURE

1. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY

(a) Perform a visual check for any foreign matter on the temperature sensor (thermistor) of the mass air flow meter sub-assembly shown in the illustration.

OK:

There is no foreign matter.

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

*a

Thermistor

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

4 (THA) - 2 (E2G)

-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

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

*a

Component without harness connected

(Mass Air Flow Meter Sub-assembly)
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    Installation

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