Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Mazda >> 2003 >> 6 s, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Controls [Self-Diagnostics 2.3L]) >> System Tests >> Variable Valve Timing Control System Operation Inspection >> When Idling Can Be Continued

When Idling Can Be Continued

WARNING: This page is about a different variant/trim than selected.
  1. Disconnect oil control valve (OCV) connector.
  2. Warm up engine and let idle.
  3. Apply battery voltage to OCV and verify engine idles roughly or stalls.
    • If engine idles roughly or stalls, inspect timing belt component (valve timing deviation).
    • If engine does not idle roughly or stalls, go to next step.
  4. Remove OCV and perform spool valve operation inspection. OIL CONTROL VALVE - MAZDA6 & MIATA ONLY under VARIABLE VALVE TIMING CONTROL in SYSTEM & COMPONENT TESTING - MAZDA6, MIATA, MPV, PROTEGE & PROTEGE5 article. If not as specified, inspect following:
    • OCV
    • Harnesses and connectors between OCV and PCM for open or short circuit
    If as specified, inspect following hydraulic passages for clogging or leakage or both
    • Oil pressure switch to OCV
    • OCV to camshaft
    • Camshaft internal passage
  5. If all passages are okay, replace camshaft pulley (with built-in variable valve timing actuator).
scientia non olet · About Mike's Workshop Manuals