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Isuzu
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2004
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Axiom Base, 4WD
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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 - Diagnostic Information & Procedures
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General Description
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VVT (Variable Valve Timing) System
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(B) Retard
(B) Retard
The spool valve of OCV moves to left-hand side, the vane pump rotates to retard side.
Fig 1: Identifying Spool Valve Of OCV Moves To Left-Hand Side
Courtesy of ISUZU MOTOR CO.