Camry Wagon V6-3.0L (1MZ-FE) (1994)
Air Flow Meter/Sensor: Testing and Inspection
PROCEDURE
1. Inspect the Mass Air Flow (MAF) Meter resistance using an ohmmeter.
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Disconnect the MAF Meter connector.
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Measure the resistance between terminals THA and E2.
Resistance:
at -20°C (-4°F): 10 - 20 k ohms
at 0°C (32°F): 4 - 7 k ohms
at 20°C (68°F): 2 - 3 k ohms
at 40°C(104°F): 0.9 - 1.3 k ohms
at 60°C (140°F): 0.4 - 0.7 k ohms
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If the resistance is not as specified. replace the MAF meter.
2. Inspect MAF Meter Operation
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Connect the MAF Meter connector.
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Turn ignition switch ON.
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Using a voltmeter, connect the positive (+) tester probe to terminal VG, and negative (-) tester probe to terminal E21.
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Blow air into the MAF Meter, and check that the voltage fluctuates.
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If operation is not as specified, replace the MAF Meter.