LEMON Manuals
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Toyota
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2003
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Highlander Base, 3.0 F, AWD
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System Self Diagnostics - V6
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Diagnostic Tests
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DTC P0450: EVAP System Pressure Sensor Malfunction & DTC P0451: EVAP System Pressure Sensor Range/Performance
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Possible Causes
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Possible Causes
Open or short in vapor pressure sensor circuit.
Defective vapor pressure sensor.
Defective ECM.