Diesel Data
: Automotive Repair
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Toyota Truck
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1991
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4 Runner 4WD L4-144.4 2366cc 2.4L SOHC (22R-E)
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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Manufacturer Code Charts
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Engine Control System
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DTC 21
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Circuit Test
Circuit Test
j�� Oxygen Sensor Test:
