LX 450 L6-4.5L (1FZ-FE) (1996)
Mass Air Flow Meter: Testing and Inspection
MASS AIR FLOW METER INSPECTION
1. Inspect MAF meter resistance.
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Using an ohmmeter, measure the resistance between terminals THA and E2.
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If the resistance is not as specified. replace the MAF meter.
2. Inspect MAF meter operations.
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Connect the MAF meter connector.
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Connect the negative (-) terminal cable to the battery.
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Using a voltmeter, connect the positive (+) tester probe to terminal VG, and negative (-) tester probe to terminal E3.
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Turn the ignition switch ON.
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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.
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Turn the ignition switch OFF.
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Disconnect the negative (-) terminal cable from the battery.