Operation CHARM
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Toyota
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2007
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4 Runner 2WD V8-4.7L (2UZ-FE)
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Repair and Diagnosis
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Powertrain Management
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Emission Control Systems
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Air Injection
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Testing and Inspection
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Component Inspection
Component Inspection
INSPECTION
1.
INSPECT AIR PUMP ASSEMBLY
a.
Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and check that air flows.
If operation is not as specified, replace the air pump.