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Land Rover
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2003
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Range Rover
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Self-Diagnostics - Without Codes
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OBD Drive Cycle Information
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Drive Cycle E
Drive Cycle E
Ensure fuel tank is at least a quarter full.
Carry out Drive Cycle A.
Switch off ignition.
Leave vehicle undisturbed for 20 minutes.
Switch on ignition.
Connect a generic scan tool and check for diagnostic trouble codes.