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Home >> Mazda >> 2024 >> CX-90 Turbo Select >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 22 (Engine Mechanical (VIN A) (5 Of 6)) >> Oil Control Valve (OCV) Inspection [PYUL] >> Inspect Oil Control Valve (OCV) >> Spool valve operation inspection

Spool valve operation inspection

WARNING: This page is about a different variant/trim than selected.
NOTE:
  1. Verify that the spool valve in the OCV is in the maximum valve timing advance position as indicated in the figure.
    G16701114Courtesy of MAZDA MOTORS CORP.
    COMPONENT OPERATIONS

    Component no Refer to
    1 Spool valve (maximum valve timing advance position)
  2. Verify that the battery is fully charged. (See BATTERY INSPECTION .)
    NOTE:
    • When applying battery positive voltage between the OCV terminals, the connection can be either of the following:
      • Positive battery cable to terminal A, negative battery cable to terminal B
      • Positive battery cable to terminal B, negative battery cable to terminal A
    G16701115Courtesy of MAZDA MOTORS CORP.
  3. Apply battery positive voltage between the OCV terminals and verify that the spool valve operates and moves to the maximum valve timing retard position.
    G16701119Courtesy of MAZDA MOTORS CORP.
    COMPONENT OPERATIONS

    Component no Refer to
    1 Spool valve (maximum valve timing retard position)
    2 Valve timing retard
    3 Valve timing advance
  4. Stop applying battery positive voltage and verify that the spool valve returns to the maximum valve timing advance position.
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